Mang May Tinh

Headshot ~ 100%Đ thi M ng Máy Tính 1.ề ạM ng Căn B n.ạ ả

Question 1 Đi m : --/2 ểTo send data through a network, what two flags are used to establish a session? (Choose two.)Ch n ít nh t m t câu tr l i ọ ấ ộ ả ờ CRC Port # Seq # Ack # SYN ACK Question 2 Đi m : --/2 ểWhich OSI layer addressing is required to route packets between two networks? Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ Layer 2 Layer 3 Layer 1 Layer 4

Question 3 Đi m : --/2 ể

Refer to the exhibit. A PC is connected to a network. Which action will verify that the PC can communicate with its default gateway?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ Use the ping 10.0.0.254 command. Use the ping 127.0.0.1 command. Use the ipconfig/all command. Use the ipconfig command.


Refer to the exhibit. All routers in the network are configured with the correct IP addresses and routing protocol. Host A sends a packet to host B. Which exhibited steps will be executed on each of the routers in the network? Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ Router R1 executes all six steps. Router R2 executes steps 1,2,3,4, and 6. Routers R1 and R2 execute all six steps. Router R1 executes steps 1,2,3,4, and 6. Router R2 executes all six steps. Routers R1 and R2 execute steps 1, 2, 3, 4, and 6.


Refer to the exhibit. The diagram represents the process of sending e-mail between clients. Which list correctly identifies the component or protocol used at each numbered stage of the diagram?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ 1.MUA 2.POP 3.MDA 4.SMTP 5.MTA 6.MDA 7.SMTP 8.MUA 1.MUA 2.MDA 3.MTA 4.SMTP 5.MTA 6.POP 7.MDA 8.MUA 1.MUA 2.POP 3.SMTP 4.MDA 5.MTA 6.SMTP 7.POP 8.MUA 1.MUA 2.SMTP 3.MTA 4.SMTP 5.MTA 6.MDA 7.POP 8.MUA

Question 6 Đi m : --/2 ểWhich application belongs to the category of the client/server model?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ using Telnet to access a router exchanging information via instant messaging scanning a document with a directly connected scanner printing a document to a locally connected printer

Question 7 Đi m : --/2 ểWhich combination of network id and subnet mask correctly identifies all IP addresses from 172.16.128.0 through 172.16.159.255?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ 172.16.128.0 255.255.255.224 172.16.128.0 255.255.224.0 172.16.128.0 255.255.192.0 172.16.128.0 255.255.0.0 172.16.128.0 255.255.255.192

Question 8 Đi m : --/2 ểWhich statement is true about the ICMP protocol?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ It is often filtered out of networks for security purposes. It is designed to make IP a reliable protocol. It is an application layer protocol. If a host does not respond to an ICMP echo request, the host is not functioning.


Refer to the exhibit. A host is connected to hub 1. Which combination of IP address, subnet mask, and default gateway can allow this host to function in the network? Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ IP address: 172.16.31.63 Subnet mask: 255.255.255.224 Default gateway: 172.16.31.35 IP address: 172.16.31.37 Subnet mask: 255.255.255.224 Default gateway: 172.16.31.35 IP address: 172.16.31.32 Subnet mask: 255.255.255.224 Default gateway: 172.16.31.35 IP address: 172.16.31.36 Subnet mask: 255.255.255.240 Default gateway: 172.16.31.35 IP address: 172.16.31.29 Subnet mask: 255.255.255.248 Default gateway: 172.16.31.35 IP address: 172.16.31.29 Subnet mask: 255.255.255.240 Default gateway: 172.16.30.1


Refer to the exhibit. Each media link is labeled. What type of cable should be used to connect the different devices? Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ Connection 1 - straight-through cableConnection 2 - crossover cableConnection 3 - crossover cable Connection 1 - straight-through cableConnection 2 - crossover cableConnection 3 - straight-through cable Connection 1 - crossover cableConnection 2 - rollover cableConnection 3 - crossover cable Connection 1 - rollover cableConnection 2 - straight-through cableConnection 3 - crossover cable Connection 1 - crossover cableConnection 2 - straight-through cableConnection 3 - crossover cable

Question 11 Đi m : --/2 ểA network technician is tasked with setting up a network for six users, but the users should be able to use their accounts to log on from any of the six computers. What type of network should be used?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ P2P applications workgroup client-server network peer-to-peer network

Question 12 Đi m : --/2 ểWhich two types of media can provide bandwidth up to 1 Gb/s? (Choose two.)Ch n ít nh t m t câu tr l i ọ ấ ộ ả ờ 1000 BASE-SX 10 BASE-T 100 BASE-FX 1000 BASE-TX 100 BASE-T

Question 13 Đi m : --/2 ểWhich service is used when the nslookup command is issued on a computer?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ

DNS FTP DHCP Telnet


Refer to the exhibit. A router, the table of which is shown, receives a packet that is destined for 192.168.9.4. How will the router treat the packet?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ It will forward the packet via FastEthernet 0/1. It will forward the packet to the next hop address. It will forward the packet to 172.16.2.0 It will drop the packet.

Question 15 Đi m : --/2 ểDuring the encapsulation process, what identifiers are added at the transport layer?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ source and destination IP addresses source and destination port numbers source and destination MAC addresses source and destination channel identifiers


Refer to the exhibit. What three statements are true about the IP configuration that is shown? (Choose three.) Ch n ít nh t m t câu tr l i ọ ấ ộ ả ờ The network of this computer can have 126 hosts. The IP address that is assigned to the computer is routable on the Internet. The computer is unable to communicate outside of the local network. The address that is assigned to the computer represents private addressing. The prefix of the computer address is /27. The IP address that is assigned to the computer is a broadcast address.


Refer to the exhibit. The tracert command is initiated from PC1 to PC4. Which device will send a response to the initial tracert packet from PC1?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ PC4 Ankara Athens Paris London

Question 18 Đi m : --/2 ểAn organization has been assigned network ID 10.10.128.0 and subnet mask 255.255.224.0. Which IP address range can be used for this organization? Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ

10.10.128.0 to 10.10.160.255 10.10.128.0 to 10.10.0.159 10.10.128.0 to 10.10.159.255 10.10.128.0 to 10.10.159.0 10.10.128.0 to 10.10.192.255


Refer to the exhibit. Which option correctly identifies the network address, range of host addresses, and the broadcast address for the network that contains host A? Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ

chon


Refer to the exhibit. Host A is requesting a web page from the web server. Which option represents the socket to which the request is made?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ 10.0.0.130:80 www.cisco.com 10.0.0.130 80


Refer to the exhibit. A PC is communicating with another PC on a remote network. The two networks are connected by three routers. Which action will help to identify the path between the hosts? Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ Use the tracert command at the host. Use the ping command at the destination. Use the ipconfig command at the host. Use the ipconfig/all command at the destination.


Refer to the exhibit. Which layered network model is shown in the diagram?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ TCP/IP OSI IETF Cisco

Question 23 Đi m : --/2 ểA network administrator is asked to design a new addressing scheme for a corporate network. There are 60 users in the main office, 40 users in the branch office, 28 users in manufacturing, 12 in the sales office, and 4 users in the research office. Which VLSM addressing scheme that uses the 192.168.88.0/24 network will fulfill the requirements while wasting the fewest addresses? Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ 192.168.88.0/26 main192.168.88.64/26 branch192.168.88.128/27 manufacturing192.168.88.160/28 sales192.168.88.176/29 research 192.168.88.0/27 main192.168.88.64/28 branch192.168.88.80/28 manufacturing192.168.88.96/29 sales192.168.88.104/30 research 192.168.88.0/27 main192.168.88.32/27 branch192.168.88.64/28 manufacturing192.168.88.80/29 sales192.168.88.88/30 research 192.168.88.0/26 main192.168.88.32/26 branch

192.168.88.64/26 manufacturing192.168.88.96/27 sales192.168.88.128/28 research

Question 24Đi m : --/2 ể

Refer to the exhibit. Host A is able to access resources on the local LAN but is unable to access any resources on the Internet. What is the likely cause of this problem? Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ The host address is a network address. The network uses private addresses. The host subnet mask in incorrect. The default gateway is on a different subnet from the host.


Refer to the exhibit. A network technician is trying to determine the correct IP address configuration for Host A. What is a valid configuration for Host A? Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ IP address: 192.168.100.20; Subnet Mask: 255.255.255.240; Default Gateway: 192.168.100.17 IP address: 192.168.100.22; Subnet Mask: 255.255.255.240; Default Gateway: 10.1.1.5 IP address: 192.168.100.30; Subnet Mask: 255.255.255.240; Default Gateway: 192.168.1.1 IP address: 192.168.100.19; Subnet Mask: 255.255.255.248; Default Gateway: 192.16.1.2

IP address: 192.168.100.21; Subnet Mask: 255.255.255.248; Default Gateway: 192.168.100.18 IP address: 192.168.100.31; Subnet Mask: 255.255.255.240; Default Gateway: 192.168.100.18


Refer to the exhibit. Communication for hosts X and Y is restricted to the local network. What is the reason for this? Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ The gateway addresses are broadcast addresses. Host X is assigned a network address. Host Y is assigned a multicast address. Host X and host Y belong to different networks.


Refer to the exhibit. Host A uses router A as its default gateway. If host A sends an ICMP echo request to 172.16.10.0, what ICMP response will host A receive. Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ route redirection source quench destination unreachable echo reply

Question 28

Đi m : --/2 ểWhich TCP/IP model layer creates additional overhead on network resources due to acknowledgments, tracking, and retransmission of data?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ internet application network access transport


Refer to the exhibit. The router of the company failed and was replaced. After the replacement, hosts C and D in the Education office are able to ping each other, but they are unable to access the hosts in the Accounts office. What is the likely cause of the problem? Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ

The IP address at the serial interface of the router is incorrectly configured. The subnet mask at the fa0/1 interface of the router is incorrectly entered. The IP address at the fa0/0 interface of the router is incorrectly configured. The hosts in the Accounts office are not on the same subnet as the hosts in the Education office.


Refer to the exhibit. What function does router RT_A need to provide to allow Internet access for hosts in this network? Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ

web server address translation DHCP services ftpd

Question 31 Đi m : --/2 ểWhich option shows how a router will route packets to a remote network?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ

chon

Question 32 Đi m : --/2 ểWhich two functions of the OSI model occur at layer two? (Choose two.)Ch n ít nh t m t câu tr l i ọ ấ ộ ả ờ routing media access control cabling physical addressing encoding


Refer to the exhibit. All devices in the network use default configurations. How many broadcast domains are there in this topology?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ 9 11 7 5 3


Refer to the exhibit. Assume all devices are using default configurations. How many subnets are required to address the topology that is shown? Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ 5 4 7 1 3


Refer to the exhibit. Host C is able to ping 127.0.0.1 successfully, but is unable to communicate with hosts A and B in the organization. What is the likely cause of the problem? Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ Hosts A and B are not on the same subnet as host C. The subnet mask on host C is improperly configured. The FastEthernet interface fa0/0 of router 1 is wrongly configured. The IP addresses on the router serial interfaces are wrong.


Refer to the exhibit. While configuring a network, a technician wired each end of a Category 5e cable as shown. Which two statements are true about this setup? (Choose two.) Ch n ít nh t m t câu tr l i ọ ấ ộ ả ờ The cable is unusable and must be rewired. The cable is suitable for connecting a switch to a router Ethernet port. The cable is terminated in a way that the transmit pin is wired to the receive pin. The cable simulates a point-to-point WAN link. The cable is suitable for connecting dissimilar types of devices.

Question 37 Đi m : --/2 ểWhat information can be gathered by using the command netstat?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ active TCP connections the locally configured subnet mask the default gateway the routing protocol

Question 38

Đi m : --/2 ể

Refer to the exhibit. Host A is configured with the correct IP address for the default gateway of the router R1 FastEthernet0/1 interface. How will a packet that is sent from host A to host B be handled by the devices on the network? Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ

R1 will forward the packet to its default gateway, the next hop router R2. R2 will forward the packet to the directly connected network 10.1.1.0/24. R1 will drop the packet because R1 does not have a specific route in its routing table to the 10.1.1.0/24 network.R1 will forward the packet to its default gateway, the next hop router R2. R2 will drop the packet because it does not have a route that is learned by a routing protocol to network 10.1.1.0/24. R1 will forward the packet to its default gateway, the next hop router R2. R2 will drop the packet because it does not have a default route to network 10.1.1.0/24.

Question 39 Đi m : --/2 ểWhich device should be used for enabling a host to communicate with another host on a different network?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ hub router host switch


Refer to the exhibit. Which list refers only to end devices? Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ A,H,B,C A,D,E,G A,D,E,F D,E,F,G


Refer to the exhibit. Which type of network design is shown? Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ client/server peer-to-peer wide area dedicated server

Question 42 Đi m : --/2 ểWhat information is contained in the header of Layer 3 to help data delivery?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ port number destination host logical address device physical address virtual connection identifier

Question 43

Đi m : --/2 ể

Refer to the exhibit. Which two layers of the OSI model describe the same functions as the transport and internet layers of the TCP/IP model? (Choose two.) Ch n ít nh t m t câu tr l i ọ ấ ộ ả ờ application layer physical layer presentation layer data link layer session layer transport layer network layer


Refer to the exhibit. A host is using NAT to connect to the Internet. Which three IP addresses enable this connection? (Choose three.) Ch n ít nh t m t câu tr l i ọ ấ ộ ả ờ 10.1.1.32 10.1.1.37 10.1.1.63 10.1.1.2 10.1.1.60

10.1.1.39

Question 45 Đi m : --/2 ểA network technician has made a UTP cable that is terminated as T568A on one end and T568B on the opposite end. What type of cable has been constructed?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ console straight-through crossover patch

Question 46 Đi m : --/2 ểWhich range of port numbers are reserved for services that are commonly used by applications that run on servers? Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ 0 to 1023 49152 to 65535 1024 to 49151 0 to 255

Question 47 Đi m : --/2 ểWhen connectionless protocols are implemented at the lower layers of the OSI model, what is usually used to acknowledge that the data was received and to request the retransmission of missing data?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ a connectionless acknowledgement Ethernet IP UDP an upper-layer, connection-oriented protocol or service

Question 48 Đi m : --/3 ểWhich of the following are the address ranges of the private IP addresses? (Choose three.)Ch n ít nh t m t câu tr l i ọ ấ ộ ả ờ 200.100.50.0 to 200.100.25.255 150.150.0.0 to 150.150.255.255 172.16.0.0 to 172.31.255.255 10.0.0.0 to 10.255.255.255 192.168.0.0 to 192.168.255.255 127.16.0.0 to 127.31.255.255

Question 49 Đi m : --/3 ểWhich three IPv4 addresses represent subnet broadcast addresses? (Choose three.)Ch n ít nh t m t câu tr l i ọ ấ ộ ả ờ 192.168.4.191 /26 192.168.4.221 /27

192.168.4.95 /27 192.168.4.129 /26 192.168.4.51 /27 192.168.4.63 /26


Refer to the exhibit. A user wants to access the Internet from the PC. A part of the running configuration of the router is shown. Which default gateway IP address should be configured at the PC to enable this access?Ch n m t ph ng án tr l i. ọ ộ ươ ả ờ 192.31.7.1 10.1.192.1 10.1.192.2 10.1.192.54

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