Juniper Practice questions

8/19/2019 Juniper Practice questions

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Exam Name: Juniper Networks Certified Internet Associate (JNCIA-JUNOS)

Exam Type: Juniper

Exam Code: JN0-100 Total Questions : 161

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Answer: C

Question: 6 After issuing the show interfaces terse command, you notice that the status of one interface is "updown". What does this indicate?"

A. Layer 1 on the interface is up but Layer 2 is down.B. Layer 2 on the interface is up but Layer 3 has not been configured.C. The interface is administratively up but the link status is down.D. The interface is up but has been administratively turned off.

Answer: C

Question: 7What represents the decimal equivalence of 10101100 00011111 11001001 11000101?

A. 172.28.187.189B. 172.31.201.197C. 172.30.231.182

D. 172.19.151.107

Answer: B

Question: 8Which option is correct to configure the maximum transmit packet size of a Fast Ethernetinterface?

A. set interfaces fe-0/0/0 unit 0 ethernet-options mtu 1200B. set interfaces fe-0/0/0 mtu 1200C. set interfaces fe-0/0/0 unit 0 mtu 1200D. set interfaces fe-0/0/0.0 mtu 1200

Answer: B

Question: 9Which statement is true about a forwarding table?

A. It stores a subset of information from the routing table.B. It contains routes learned from all protocols to a destination.C. It provides a database for routes selected and placed into the routing table.D. Every routing protocol maintains its own forwarding table.

Answer: A

Question: 10You have just issued the command commit confirmed and your network continues to be

operational with no further changes required. You issue a commit and-quit. A short time later,users startcomplaining about network problems. Which commands (in order) need to be enteredto resolve thisissue?

A. >commit confirmedB. >configure

#rollback 1#commit

C. >configure


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#commit confirmed and-quitD. >configure

#confirm and-quit

Answer: B

Question: 11Which command will show which message is displayed on a Juniper Router's LCD statusscreen?

A. show chassis lcdB. show chassis fpdC. show chassis craft-interfaceD. show chassis status-window

Answer: C

Question: 12Which command configures an address of 192.168.1.1 with a mask of 255.255.255.0 on interface

ge-0/0/0?

A. set ip interface ge-0/0/0 address 192.168.1.1 255.255.255.0B. set ip interface ge-0/0/0 address 192.168.1.1/24C. set interface ge-0/0/0 ip4 address 192.168.1.1 mask 255.255.255.0D. set interfaces ge-0/0/0 unit 0 family inet address 192.168.1.1/24

Answer: D

Question: 13How are the commands a user is allowed to enter defined in JUNOS?

A. Permissions are configured individually for each user.

B. Users are associated with user classes, and each class defines the permissions for enteringcommands.C. There are four default classes with different permissions and you can only use these four.D. Permissions are associated with each user ID.

Answer: B

Question: 14By default, which routing table is used to store unicast IPv4 routes?

A. inet.0B. inet.1C. inet.2D. inet.3

Answer: A

Question: 15 After factory-defaults have been loaded, which two syslog files will be present in theconfiguration?

A. system and chassisdB. syslog-messages and NVRAM


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C. messages and interactive-commandsD. authorization and events

Answer: C

Question: 16

For which two functions is the Routing Engine responsible? (Choose two.)

A. packet forwardingB. queuing functionsC. routing protocol controlD. JUNOS software operation

Answer: C, D

Question: 17What is the default protocol preference for BGP EBGP routes?

A. 10

B. 100C. 170D. 175

Answer: C

Question: 18What is the default protocol preference for OSPF external routes?

A. 10B. 15C. 150D. 160

Answer: C

Question: 19Which command sequence displays queue statistics for an interface?

A. monitor interface ge-0/0/0 queueB. show interfaces queue ge-0/0/0C. show interfaces ge-0/0/0 statistics extensiveD. show statistics queue detail

Answer: B

Question: 20

Which two statements about login classes correctly define their usage within the JUNOSsoftware? (Choose two.)

A. A different login class must be configured for each user.B. Individual commands can be explicitly allowed or denied.C. A user must be assigned to one of the default login classes.D. Each login class is associated with one or more permissions flags.

Answer: B, D


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Question: 21Where are files queued for transmission when using the configuration archive transfer-on-commitfunction?

A. /var/config

B. /var/queueC. /var/transfer/queueD. /var/transfer/config

Answer: D

Question: 22You have been asked to use a 30 bit subnet mask to segment the following network block:108.12.5.0. How many useable subnetworks and usable hosts could be created?

A. 32 networks with 8 hostsB. 62 networks with 2 hostsC. 30 networks with 16 hosts

D. 32 networks with 14 hosts

Answer: B

Question: 23Which three steps are part of the PPP CHAP 3-way handshake? (Choose three.)

A. The caller sends a challenge to the authenticator.B. The authenticator sends a challenge to the caller.C. The caller encrypts the challenge using a secret.D. The caller sends a success message to the authenticator.E. The authenticator encrypts the challenge using a secret.

Answer: B, C, E

Question: 24How do you send static routes to a RIP neighbor?

A. By default, RIP automatically sends static routes.B. Configure the static route with a next hop of the RIP neighbor.C. Configure redistribute static under [edit protocols rip].D. Apply an export policy within RIP that matches on the routes, and accepts it.

Answer: D

Question: 25To troubleshoot interface problems, you can use both the disable command and the deactivate

command. Which two statements are correct?

A. If the interface is disabled, the logical unit will administratively shutdown.B. If the interface is deactivated, the physical interface will administratively shutdown.C. If the interface is deactivated, the interface configuration is ignored during commit.D. If the interface is disabled, the logical unit configuration is ignored during commit.

Answer: B, C


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Question: 26With which two does a scheduler map associate? (Choose two.)

A. SchedulerB. BA ClassifierC. Queues

D. Interface

Answer: C, D

Question: 27Which services must be enabled on a router to access JWEB?

A. web-management{http;B. remote-access profile{http;C. remote-access profile{web-gui;

D. web-management{web-gui;

Answer: A

Question: 28Which command would allow you to compare two files stored on your router?

A. user@host> file show filename1 compare filename2B. user@host> file compare files filename1 filename2C. user@host> compare files filename1 filename 2D. user@host> compare filename1 filename2

Answer: B

Question: 29In Ethernet networks, duplex mismatches will lower performance. Which error statistics can beseen if a duplex mismatch is present?

A. collisions on the full-duplex side; runts on the half-duplex sideB. collisions on the full-duplex side; collisions on the half-duplex sideC. collisions on the half-duplex side; framing errors on the full-duplex sideD. collisions on the half-duplex side; giants on the full-duplex side

Answer: C

Question: 30

When troubleshooting ATM, which command would allow you to test reachability from one side ofan ATM cloud to the other?

A. ping atm vci 0.100 interface at-0/1/0 end-to-endB. ping atm vci 0.100 interface at-0/1/0 circuitC. ping atm vci 0.100 interface at-0/1/0 far-endD. ping atm vci 0.100 interface at-0/1/0 final-hop

Answer: A


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Question: 31Which two are correct when configuring an IP address for a Fast Ethernet interface? (Choosetwo.)

A. set interfaces fe-0/0/0 address 10.1.1.1/24

B. set interfaces fe-0/0/0.0 family inet address 10.1.1.1/24C. set interfaces fe-0/0/0.0 address 10.1.1.1/24D. set interfaces fe-0/0/0 unit 0 family inet address 10.1.1.1/24

Answer: B, D

Question: 32Which command would you type to see a concise display of which interfaces are up and whichare down?

A. show interfaces briefB. show interfaces statusC. show ip interface brief

D. show interfaces terse

Answer: D

Question: 33Click the Exhibit button. Given the routing entries shown in the exhibit,which next-hop IP address will be used for the destination IP address 192.168.2.158? (Assumeonly static routes are available for the destination.)

A. 10.210.14.130B. 172.18.1.1C. 10.210.14.131D. 172.20.106.10

Answer: D

Question: 34When is the BA Classifier engaged for identifying the forwarding class of traffic in a Juniperrouter?

A. after a packet is identified by a multifield classifierB. after the traffic passes though a shaperC. prior to ingress policing of trafficD. while the packet is stored in the switching fabric of the router

Answer: C

Question: 35Which two protocols are connection-oriented? (Choose two.)

A. EthernetB. PPPC. TCPD. UDP

Answer: B, C


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Question: 36If a SONET/SDH interface transmit link fails between two JUNOS devices, which two alarms ordefects would be seen on those devices? (Choose two.)

A. LOS

B. REIC. BIP-B3D. RDI

Answer: A, D

Question: 37What are the contents of a scheduler?

A. A scheduler contains parameters that describe how a queue should be serviced.B. A scheduler contains traffic that is ready to be transmitted.C. A scheduler contains forwarding classes that allow traffic to be forwarded.D. A scheduler contains a map between the classification of a packet and its forwarding class.

Answer: A

Question: 38Which commnand would correctly define a router's host-name?

A. # set ip host-nameB. > set ip host-nameC. # set system host-nameD. > set system host-name

Answer: C

Question: 39You are configuring a firewall filter. Which "from" criterion would match only those packetsdestined for 10.10.10.1?

A. [edit firewall filter test]root@router# set term 1 from address 10.10.10.1

B. [edit firewall filter test]root@router# set term 1 from destination-address 10.10.10.1

C. [edit firewall filter test]root@router# set term 1 from destination 10.10.10.1

D. [edit firewall filter test]root@router# set term 1 from ip-prefix 10.10.10.1

Answer: B

Question: 40Which statement is correct about logical units on Juniper Router interfaces?

A. Logical units are used only when a Layer 2 identifier is present such as a VLAN.B. A logical unit of 0 is required when using a frame-relay DLCI.C. A logical unit is always required.D. Logical units are not required unless ATM or 802.1Q VLAN tagging is configured.


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Answer: C

Question: 41What information does the help topic command provide?

A. router's version and serial number to help open a case with JTAC

B. software documentation describing features and configuration tasks within JUNOSC. a brief description of commands and their default valuesD. a verification of the current configuration on the router

Answer: B

Question: 42Which two statements about subnet masks are true? (Choose two.)

A. If a bit is turned on (1), the corresponding bit in the IP address is used for the host portion.B. If a bit is turned off (0), the corresponding bit in the IP address is used for the host portion.C. If a bit is turned on (1), the corresponding bit in the IP address is used for the network prefix.D. If a bit is turned off (0), the corresponding bit in the IP address is used for the network prefix.

Answer: B, C

Question: 43Which command will display the temperature of the Routing Engine's CPU?

A. show chassis environmentB. show chassis routing-engineC. show chassis temperaturesD. show chassis status

Answer: B

Question: 44What is correct regarding the configuration shown below? static route 0.0.0.0/0 qualified-next-hop172.30.25.1 preference 7 next-hop 172.30.25.5

A. The next-hop 172.30.25.1 is selected because the address has the lowest value.B. The next-hop 172.30.25.1 is selected because it is listed first.C. The next-hop 172.30.25.1 is selected because it is the lowest protocol preference.D. The next-hop 172.30.25.5 is selected because it is the lowest protocol preference.

Answer: D

Question: 45You have been asked to use a 25 bit subnet mask to segment the following network block:209.18.12.0. How many usable will there be per subnet?

A. 2 hostsB. 120 hostsC. 126 hostsD. 255 hosts

Answer: C

Question: 46


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What is the default local location for syslog and trace files?

A. /logB. /home/logC. /var/logD. /etc/log

Answer: C

Question: 47Which command would allow you to login to FPC 1 to collect FPC specific logs?

A. start shell fpc1B. start shell tnp1C. start shell tnp address 1D. start shell pfe network fpc1

Answer: D

Question: 48Which two statements are true regarding an Ethernet collision domain? (Choose two.)

A. The likelihood of collisions occurring increases when a switch is used.B. The likelihood of collisions occurring increases when a hub is used.C. If a hub is used, the collision domain is limited to each device and the hub.D. If a switch is used, the collision domain is limited to each device and the switch.

Answer: B, D

Question: 49When a local loopback is activated on a PPP serial link, what indicates that the local interface isgood?

A. A ping to the local address succeeds.B. A ping to the remote address succeeds.C. A ping to the remote address received a 'TTL expired' message.D. The interface shows a flag indicating that a loop is detected.

Answer: D

Question: 50Which two statements best describes the role of a router on a broadcast domain? (Choose two.)

A. Routers facilitate communications within a broadcast domain.B. Routers facilitate communications between broadcast domains.C. Routers are used to break up broadcast domains into separate networks.

D. Routers are used to connect small broadcast domains and form larger more efficient broadcastdomains.

Answer: B, C

Question: 51What is a vaild match criteria for a firewall filter?

A. from protocol tcp


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B. from urlC. from communityD. from acl

Answer: A

Question: 52Which command would correctly set a router's date and time?

A. # set date 199708290900.00B. # set system time 199708290900.00C. > set date 199708290900.00D. > set system time 199708290900.00

Answer: C

Question: 53What are the usable hosts on the 192.168.1.24/29 network?

A. .24 through .48B. .24 through .32C. .25 through .30D. .35 through .31

Answer: C

Question: 54Which operational command allows a user to view the exhaust temperatures of a Juniper device?

A. show chassis stateB. file list alarmC. show chassis alarms

D. show chassis environment

Answer: D

Question: 55 A routing policy has three terms and the first term of the policy does not contain a terminatingaction. What will become of the routes after they have been evaluated by the first term?

A. In the absence of a terminating action, all routes are accepted.B. The route will be evaluated by the second term in the policy.C. The default action will be applied.D. In the absence of a termination action, all routes are rejected.

Answer: B

Question: 56Which two statements are true about the rescue configuration file? (Choose two.)

A. It gets updated automatically when you commit.B. You need to create it by issuing request system configuration rescue save.C. It is rollback file number 50 and you can recover it by issuing rollback 50.D. You can load it by entering rollback rescue.


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Answer: B, D

Question: 57In which mode are users allowed to configure the device, including interfaces, protocols, useraccess, and system hardware properties?

A. priviledged modeB. configuration modeC. monitoring modeD. operational mode

Answer: B

Question: 58What is the maximum difference between a NTP server's clock and the system clock forsynchronization to be successful?

A. 60 secondsB. 120 seconds

C. 600 secondsD. 1000 seconds

Answer: D

Question: 59Which two commands are needed to create and apply an export policy thatadvertises staticroutes to OSPF neighbors? (Choose two.)

A. edit policy-options policy-statement policy-nameset term 1 from protocol staticset term 1 then accept

B. edit ospf policy

set from protocol staticset 1 then acceptC. set protocols OSPF export policy-nameD. set protocols OSPF policy policy-name

Answer: A, C

Question: 60You delete a trace options file and later notice that no new entries are being written to this file.What would allow the entries to be written to the file again?

A. Issue a commit of the current configuration.B. Issue a commit full of the current configuration.C. Issue a commit all of the current configuration.

D. Issue a commit confirmed of the current configuration.

Answer: B

Question: 61What is the first CoS process performed when a packet enters a JUNOS device?

A. Rewrite MarkerB. Multifield Classifier


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C. PolicingD. BA Classifier

Answer: D

Question: 62

Which naming convention is used by Juniper Routers when archiving their configurations to aremote server?

A. yyyymmdd_HHMMSS_host-name

Answer: Pending

Question: 63Which two statements regarding JUNOS architecture are correct? (Choosetwo.)

A. The Routing Engine handles all exception traffic.B. The Routing Engine synchronizes the route table with the PFE.C. The Routing Engine is hot-pluggable.

D. The Routing Engine controls the PFE.

Answer: C, D

Question: 64What is a vaild action for a firewall filter?

A. then dropB. then countC. then allowD. then community add

Answer: B

Question: 65Which command allows viewing of only OSPF routes?

A. show ip ospf routeB. show ip route protocol ospfC. show route protocol ospfD. show ospf table

Answer: C

Question: 66You are the network administrator setting up the IP network for a new branch office. You need atleast 5 networks with 25 hosts each. You have been allocated a /24 network. Which prefix length

will satisfy the given requirements?

A. /24B. /26C. /27D. /28

Answer: C


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A. MRUB. connection speedC. authentication protocolD. anti-replay detection

Answer: A, C

Question: 71Which type of routes are held in Inet.0?

A. multicast and unicast IPv4 routesB. ARP tables and MAC reachabilityC. IP version 4 unicast routesD. IP version 6 and IP version 4 routes

Answer: C

Question: 72How many IP addresses can be configured in a given interface?

A. one primary and one secondary IP addressB. one IP addressC. as many IP addresses as you wantD. one primary and multiple secondary IP addresses

Answer: C

Question: 73Which CLI command displays error statistics for an interface in real-time?

A. monitor trafficB. show interfaces

C. monitor interfaceD. show interfaces extensive

Answer: C

Question: 74You have been asked to configure a login class which will permit its users to view and edit theconfiguration. The class should only allow the configuration of the interfaces and firewallheirarchies. Which configuration correctly accomplishes this?

A. accept-commands "(configure)";accept-configuration "(interfaces|firewall)";deny-configuration "(groups)";

B. permissions [ clear network reset view ];

allow-commands "(configure)";allow-configuration "(interfaces) | (firewall)";deny-configuration "(groups)";

C. permissions [ clear network reset view ];permit-commands "(configure)";permit-configuration "(interfaces) | (firewall)";deny-configuration "(groups)";

D. permissions [ clear network reset view ];allow-syntax "(configure)";


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allow-config "(interface) | (firewalls)";deny-configuration "(groups)";

Answer: B

Question: 75

What is the purpose of classification, rewrites, and queuing in Juniper routers?

A. to provide policy based routingB. to provide class of service capabilitiesC. to provide firewall filtering capabilitiesD. to provide unified threat managment

Answer: B

Question: 76Which command is used to show active alarms on a Juniper device?

A. file list alarm

B. show chassis alarmsC. show chassis stateD. show hardware alarms

Answer: B

Question: 77Which two statements describe the default routing policy for BGP? (Choose two.)

A. Advertise only locally originated routes.B. Accept all BGP routes and import into inet.0.C. Advertise all active BGP routes.D. Advertise only EBGP routes.

Answer: B, C

Question: 78Which three are considered match criteria in a policy? (Choose three.)

A. prefix-listB. protocol ospfC. next-termD. AS pathE. prefix-term

Answer: A, B, D

Question: 79Your routing table contains four static routes which you need to redistribute to your OSPF peers.Which method would accomplish this?

A. Apply an import policy to OSPF; this will import the static routes into OSPF.B. Apply an export policy to protocol "static"; this will export the routes to other protocols.C. Apply an import policy to the forwarding table; this will import the routes, allowing them to be

forwarded to OSPF neighbors.D. Apply an export policy to OSPF; this will export the static routes to your OSPF neighbors.


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Answer: D

Question: 80Which command configures the router to send SNMP link-related notifications such as up-downtransitions and line status changes?

A. set snmp trap-group my-trap-group link-statusB. set snmp trap-group my-trap-group categories linkC. set snmp log link-statusD. set snmp trap link-status

Answer: B

Question: 81What are three components of a scheduler? (Choose three.)

A. Forwarding ClassB. Priority

C. TOS MarkingD. Buffer SizeE. RED Configuration

Answer: B, D, E

Question: 82What are two valid initial configuration methods supported on Juniper routers? (Choose two)

A. CLIB. J-WebC. JUNOScopeD. PCMCIA flash card

Answer: A, B

Question: 83What is the proper order for CoS processing for ingress packets on a Juniper router?

A. Multifield Classifier > Forwarding Policy > Policing > BA ClassifierB. Multifield Classifier > Policing > BA Classifier > Forwarding PolicyC. BA Classifier > Policing > Multifield Classifier > Forwarding PolicyD. BA Classifier > Forwarding Policy > Policing > Multifield Classifier

Answer: C

Question: 84

The auto-complete feature in the JUNOS CLI is triggered by which method?

A. space bar for both command and variable completionB. space bar for command completion; tab key for variable completionC. space bar for variable completion; tab key for command completionD. tab key for variable and command completion; space bar for command completion

Answer: D


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Question: 85Which two statements accurately describe a broadcast domain? (Choose two.)

A. Broadcast domains consist of devices that connect to a common switch or hub.B. Broadcast domains consist of a group of devices that can be reached by sending a frame

addressed to the Layer 2 broadcast address.

C. Broadcast domains require a gateway device such as a router.D. Broadcast domains consist of devices that reside on the same sub-network.

Answer: B, D

Question: 86Which two loopback types are supported for serial interfaces on Juniper devices? (Choose two.)

A. LocalB. Far EndC. RemoteD. Bidirectional

Answer: A, C

Question: 87Rewrite rules are used in which CoS scenario?

A. When a single device is configured to provide differentiated services.B. When multiple devices in a network are configured to use CoS to provide differentiated

services.C. When a device is used to connect to another autonomous system.D. When CoS is used to classifiy traffic as low priority.

Answer: B

Question: 88Which method loads the configuration which was active before your last commit?

A. load replace last-activeB. load rollback 1C. rollback 1D. rollback last-active

Answer: C

Question: 89Which user authentication methods are available in JUNOS?

A. MD5 and SHA

B. RADIUS and TACACS onlyC. Local User DatabaseD. Local user Database, RADIUS, and TACACS+

Answer: D

Question: 90Which two statements are correct about routing tables in JUNOS? (Choose two.)


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A. There are separate tables for IPv4 and IPv6 called inet.0 and inet6.0 respectively.B. They only contain the best possible route to each destination.C. All running protocols can populate the routing tables at the same time.D. Routes with the highest preference value are placed as active routes in the routing table.

Answer: A, C

Question: 91Which protocol family is required prior to assigning an IP address to an interface?

A. family ipB. family ip6C. family inetD. family inet4

Answer: C

Question: 92What is used to segment larger networks into smaller networks?

A. supernet masksB. subnet masksC. wildcard masksD. route filtering

Answer: B

Question: 93Which CLI command is used to upgrade a Juniper router?

A. load packageB. load override terminal

C. request system software addD. request system software upgrade

Answer: C

Question: 94Click the Exhibit button. Given the policy shown in the exhibit, what will happen to Static route172.10.16.0/24?

A. acceptB. rejectC. next-policyD. go to default policy

Answer: A

Question: 95Which logical unit number must be configured on an interface using PPP encapsulation?

A. unit 0B. unit 1C. unit 100D. unit 255


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Answer: A

Question: 96The monitor traffic command closely resembles which UNIX-based utility?

A. ps -xB. passwdC. ls -a-lD. tcpdump

Answer: D

Question: 97When configuring a scheduler map, which two are referenced? (Choose two.)

A. Forwarding ClassB. SchedulerC. Rewrite Rules

D. Priority

Answer: A, B

Question: 98What represents the binary equivalence of 192.168.187.201?

A. 10101000 11001000 10101001 10101001B. 11000000 10101100 10101011 11000101C. 11000000 10101000 10111011 11001001D. 11000100 10101010 10110011 11001011

Answer: C

Question: 99Given the host IP address of 192.168.100.60 and a network mask of 255.255.255.224 (or /27),which address represents the correct network address for the referenced host?

A. 192.168.100.48B. 192.168.100.16C. 192.168.100.0D. 192.168.100.32

Answer: D

Question: 100What are the usable hosts on the 200.50.12.64/26 network?

A. .65 through .126B. .64 through .127C. .66 through .128D. .65 through .127

Answer: A

Question: 101


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What is the role of route preference?

A. It is used to determine which route should become active.B. It is used to select which routing table to use for forwarding.C. It is used to determine what routes to accept into the routing table.D. It is used to select the best route between multiple equal cost paths.

Answer: A

Question: 102Which command is used to retrieve the serial numbers of a Juniper device?

A. show versionB. show chassis hardwareC. show hardware detailD. view hardware database

Answer: B

Question: 103Which three statements are true of dynamic routing protocols? (Choose three.)

A. They are scalable.B. They are Dijkstra based.C. They share network layer reachability information among neighbors.D. They automate next hop decisions..E. They are tolerant of configuration errors.

Answer: A, C, D

Question: 104If the PFE does not have a route to the destination address of a packet, which action will be

taken?

A. The PFE floods the packet out of all interfaces.B. The PFE drops the packet and sends a destination unreachable notification back to source

device.C. The PFE forwards the packet to the routing engine for further processing.D. The PFE queues the packet and sends a request for a layer 3 lookup to the routing engine.

Answer: B

Question: 105What is the primary purpose for the classification of traffic in a router?

A. to use the classification to route traffic

B. to use the classification to reorder packets from various sourcesC. to use the classification to discard malformed packetsD. to use the classification to provide the configured service level

Answer: D

Question: 106What is the primary syslog file?


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A. /var/syslog-fileB. /var/syslogC. /var/log/messagesD. /log-file

Answer: C

Question: 107Which three statements are true regarding the Network Time Protocol (NTP) in JUNOSplatforms? (Choose three.)

A. MD5 authentication is supported.B. A client always synchronizes to a server even when the difference between the server clock

and the local clock differs by a large amount.C. JUNOS software can provide a primary time reference.D. The boot-server configuration allows a router to synchronize its clock when it boots up,

regardless of the offset between the NTP clock source and its internal clock.E. It is useful to correlate timestamps on log files and other events for troubleshooting and

forensics.

Answer: A, D, E

Question: 108 A router has been configured with the authentication order settings shown below: [edit]user@host# show system authentication-order authentication-order [ radius tacplus password ];The router also has a local database that contains the user lab with password lab123. Whatwould happen if both the RADIUS and the TACACS servers respond with a reject for user lab?

A. The user lab will not be able to login.B. The user lab will be authenticated against the local database and will be able to login.C. The user will be able to login only if tries to login as the root user.D. The user lab will receive an error message indicating the username and password provided

could not be found on the radius and tacacs servers.

Answer: B

Question: 109How is a loopback cleared on interface ge-0/0/0?

A. Issue the operational command clear interfaces ge-0/0/0 loopback local.B. No command is necessary, the loopback times-out in 5 minutes.C. Issue the configuration command clear interfaces ge-0/0/0 loopback, then commit.D. Issue the configuration command delete interfaces ge-0/0/0 gigether-options loopback , then

commit.

Answer: D

Question: 110You are at the system level. Which two would allow you to see the protocol's level candidateconfiguration? (Choose two.)

A. exit configuration-mode show protocols

B. exit configuration-mode show configuration protocols


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C. top show protocols

D. top show protocols

Answer: C, D

Question: 111When you display the routing table by entering the show route command, what does the *indicate?

A. The route is a direct route.B. The route was selected as active.C. The route is a default route.D. The route was learned using a dynamic routing protocol.

Answer: B

Question: 112Which major J-Web menu should you use to upgrade the JUNOS software on the router?

A. MonitorB. MaintainC. DiagnoseD. Configuration

Answer: B

Question: 113What represents the decimal equivalence of 11000000 10101000 10101100 11110001?

A. 192.168.184.201B. 192.168.172.241

C. 192.170.172.237D. 192.170.184.221

Answer: B

Question: 114Which two statements are true regarding an Ethernet collision domain? (Choose two.)

A. If a switch is used, the collision domain includes all devices connected to the switch.B. If a hub is used, the collision domain includes all devices connected to the hub.C. If a hub is used, the collision domain is limited to each device and the hub.D. If a switch is used, the collision domain is limited to each device and the switch.

Answer: B, D

Question: 115Which two policy actions are considered flow control actions? (Choose two.)

A. rejectB. community addC. next termD. next policy


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Answer: C, D

Question: 116The interface ge-0/2/3 is located in which flexible PIC concentrator slot?

A. 0

B. 2C. 3D. 4

Answer: A

Question: 117When a non-root user connects to a JUNOS platform and enters a username and password, theuser is immediately placed at which level?

A. UNIX shellB. user level CLIC. configuration mode

D. operational mode

Answer: D

Question: 118The monitor traffic command provides access to which util ity?

A. tcpdumpB. telnetC. tracerouteD. netstat

Answer: A

Question: 119Click the Exhibit button. Given the firewall filter shown the exhibit, apacket has a source IP address of 20.2.2.1 and a destination address of 10.1.1.1. How can thepacket be changed to discard and count it?

A. rename term 4 to term 1B. rename term 1 to term 5C. insert term 4 before term 1D. insert term 4 before term 3

Answer: C

Question: 120

In which routing table would you find an OSPF V2 route?

A. ipv4-unicastB. inet.0C. inet.4D. inet.ipv4

Answer: B


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Question: 121Which two statements are correct regarding default protocol preference values? (Choose two.)

A. OSPF has a single preference value for both internal and external routes.B. RIP is preferred over OSPF external routes.C. Direct, local, and static routes have the same preference value.

D. OSPF's preference value is lower than BGP (both IBGP and EBGP).

Answer: B, D

Question: 122When performing password recovery, which command should be entered at the boot prompt?

A. boot -sB. boot -rC. boot singleD. boot recovery

Answer: A

Question: 123On a Juniper router, what is the default file used for syslog messages?

A. systemB. errorsC. securityD. messages

Answer: D

Question: 124Which two statements are true regarding interface properties? (Choose two.)

A. MTU and speed must be configured under each unit.B. Physical parameters such as MTU, duplex mode, and speed are configured under the

interface name.C. IP and IPv6 addresses are configured under a unit-number.D. DLCI numbers, VPI/VCI values, and VLAN tags are physical parameters.

Answer: B, C

Question: 125Which three SONET network elements are used for troubleshooting? (Choose three.)

A. lineB. path

C. circuitD. sectionE. segment

Answer: A, B, D

Question: 126Which CLI command displays packet and byte counts for an interface in real-time?


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E. management access interface

Answer: B, C, E

Question: 132Which two statements are correct regarding units in JUNOS? (Choose two.)

A. Units in JUNOS are always required for any interface configured with logical addresses suchas IP and IPv6.

B. Units in JUNOS are only required when you are configuring sub-interfaces for inter-VLANrouting.

C. Unit numbers must match the DLCI or VCI numbers configured on the interface.D. Unit 0 is the only value allowed on interfaces running HDLC, PPP, or for Ethernet interfaces

not doing VLAN-tagging.

Answer: A, D

Question: 133Which application would be suited for UDP traffic?

A. Web browsingB. downloading a programC. streaming television showsD. on-line shopping

Answer: C

Question: 134Which command is a valid way to view the status of an interface?

A. > show interfaces fe-0/0/0 extensiveB. > show interfaces fe-0/0/0 status

C. > show interfaces fe-0/0/0 health-infoD. > show interfaces fe-0/0/0 verbose

Answer: A

Question: 135When using the monitor traffic command to view traffic arriving on an interface, which commandwould save the data collected to a file on the router?

A. monitor traffic interface fe-0/0/0.0 save B. monitor traffic interface fe-0/0/0.0 | write C. monitor traffic interface fe-0/0/0.0 write-file D. monitor traffic interface fe-0/0/0.0 | collect

Answer: C

Question: 136You enter configuration mode with the configure command. You need to abort the changes thatyou have made and start again with a fresh copy of the active configuration. Which commandshould you use?

A. rollback 0B. load active


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C. reset configD. clear candidate config

Answer: A

Question: 137

Given the IP address range 192.168.100.0 through 192.168.100.255, whichnetwork masksegments these addresses into 16 subnets?

A. 255.255.255.224B. 255.255.255.240C. 255.255.255.248D. 255.255.255.252

Answer: B

Question: 138Which three of the following options are NOT fields found in an Ethernet frame? (Choose three.)

A. VersionB. TypeC. Source PortD. FlagsE. Data

Answer: A, C, D

Question: 139Which command sequence shows traffic per queue for an interface?

A. show interfaces queue ge-0/0/0B. show statistics queue detail

C. show interfaces ge-0/0/0 statistics extensiveD. monitor interface ge-0/0/0 queue

Answer: A

Question: 140Which statement is correct about a Routing Policy term?

A. A term must contain a "from" statement.B. A term acts like "if" and "then" statements.C. The most specific term has precedence.D. Terms can be written in any order to achieve the same behavior.

Answer: B

Question: 141

table uses a longest match lookup for forwarding decisions.

Answer: C, D

Question: 142What is the last CoS process performed prior to a packet leaving a router?


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A. Rewrite MarkerB. Multifield ClassifierC. PolicingD. BA Classifier

Answer: A

Question: 143What is used to view status messages sent to a file named "test" as they are sent?

A. monitor start testB. show log testC. view log testD. show test | realtime

Answer: A

Question: 144

Which statement accurately defines the role of a Qualified Next Hop?

A. It is any alternative path for best effort traffic.B. It is the next hop of the active route to a directly attached device.C. It is the next hop for a route from a qualified protocol.D. It is an alternative next hop for a static route.

Answer: D

Question: 145What happens when a route does not match any user configured policies?

A. The route is rejected.

B. The route is accepted.C. The route is given a lower priority.D. The route is sent to the default policy.

Answer: D

Question: 146How can you reset your router or switch to factory defaults?

A. reset configurationB. load factory-defaultC. load override defaultD. set default configuration

Answer: B

Question: 147You are the top of the hierarchy in configuration mode. How would you save your configuration toa file on the router?

A. save configuration B. save config C. save


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D. save run

Answer: C

Question: 148Which statement is correct about the validate option when upgrading JUNOS software?

A. It will check the MD5 checksum of the install package.B. It will check if the device meets the memory requirements for the install package.C. It will check the compatibility of the configuration with the install package.D. It will check if the device meets the storage requirement for the install package.

Answer: C

Question: 149Which command would initiate a loopback on a Gigabit Ethernet interface ge-0/0/0?

A. # set interfaces ge-0/0/0 unit 0 loopbackB. # set interfaces ge-0/0/0 gigether-options loopback

C. > set interfaces ge-0/0/0 loopbackD. > loopback ge-0/0/0

Answer: B

Question: 150Which two fields are found in an Ethernet frame? (Choose two.)

A. VersionB. TTLC. ChecksumD. FlagsE. Data

Answer: C, E

Question: 151Which statement is true about configuring a back-to-back connection frame-relay on JuniperRouters?

A. Both DTE and DCE will send keep-alives by default so no special configuration is required.B. The circuit is negotiated automatically so no special configuration is required.C. All equipment is by default DTE, one side should be set to DCE.D. All equipment is by default DCE, one side should be set to DTE.

Answer: C

Question: 152Which command will save the current active configuration as the rescue configuration?

A. # save | rescueB. # save rescue configurationC. > request system configuration rescue saveD. > request rescue-configuration save current

Answer: C


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Question: 153Which statement is true about the internal link between the Routing Engine and the Packet-Forwarding Engine?

A. It is only used for exception traffic.

B. It is an FE link called fxp2.C. It is rate-limited to avoid DDOS attacks.D. It is only used to send the forwarding-table from the Routing Engine to the Packet-Forwarding

Engine.

Answer: C

Question: 154What represents the binary equivalence of 96.6.231.148?

A. 10101000 11001000 10101001 10101001B. 01010000 00010110 11010101 10100110C. 01100000 00000110 11100111 10010100

D. 01100100 00100101 11100100 10010111

Answer: C

Question: 155Click the Exhibit button. The routing policy shown in the exhibit has beenapplied as an export policy under protocols OSPF. The static route for destination 10.1.1.0/24 isnot being advertised as it was expected. How can the configuration be corrected to allow theroute to be advertised?

A. rename term 2 to term 1B. rename term 1 to term 3C. insert term 1 after term 2

D. insert term 1 before term 2

Answer: C

Question: 156Which two media types support asynchronous transfer mode? (Choose two.)

A. T3B. SONETC. Gigabit-EthernetD. EIA/TIA-232 serial

Answer: A, B

Question: 157Which two options are reasons for using traffic classification? (Choose two.)

A. to use the classification to route trafficB. to use the classification to reorder packets from various sourcesC. to use the classification to discard malformed packetsD. to use the classification to provide the configured service level

Answer: A, D


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