TEST 1 – CCNA1 – JUDET - ACADNET

1. Which statements correctly identify the role of intermediary devices in the network? (Choose three.)

a. determine pathways for datab. initiate data communicationsc. retime and retransmit data signalsd. originate the flow of datae. manage data flowsf. final termination point for data flow

 2. Select the statements that are correct concerning network protocols. (Choose three.)

a. define the structure of layer specific PDU’sb. dictate how to accomplish layer functionsc. outline the functions necessary for communications between layersd. limit the need for hardware compatibilitye. require layer dependent encapsulationsf. eliminate standardization among vendors

 3. What are two functions of encapsulation? (Choose two.)

a. tracks delay between end devicesb. enables consistent network paths for communicationc. allows modification of the original data before transmissiond. identifies pieces of data as part of the same communicatione. ensures that data pieces can be directed to the correct receiving end device

 4. What is a primary function of the trailer information added by the data link layer encapsulation?

a. supports error detectionb. ensures ordered arrival of datac. provides delivery to correct destinationd. identifies the devices on the local networke. assists intermediary devices with processing and path selection

 5. Which two layers of the OSI model have the same functions as the TCP/IP model Network Access Layer? (Choose two.)

a. Networkb. Transportc. Physicald. Data Linke. Session

 6. What is a PDU?

a. corruption of a frame during transmissionb. data reassembled at the destinationc. retransmitted packets due to lost communicationd. a layer specific encapsulation

 7. Which characteristic correctly refers to end devices in a network?

a. manage data flowsb. originate data flowc. retime and retransmit data signalsd. determine pathways for data

 8.

TEST 1 – CCNA1 – JUDET - ACADNET

Refer to the exhibit. “Cell A” at IP address 10.0.0.34 has established an IP session with “IP Phone 1″ at IP address 172.16.1.103. Based upon the graphic, which device type best describes the function of wireless device “Cell A?”

a. the destination deviceb. an end devicec. an intermediate deviced. a media device

 9.

Refer to the exhibit. Which three labels correctly identify the network types for the network segments that are shown? (Choose three.)

a. Network A — WANb. Network B — WANc. Network C — LANd. Network B — MANe. Network C — WANf. Network A – LAN

 10. Which three statements best describe a Local Area Network (LAN)? (Choose three.)

a. A LAN is usually in a single geographical area.b. The network is administered by a single organization.c. The connection between segments in the LAN is usually through a leased connection.d. The security and access control of the network are controlled by a service provider.e. A LAN provides network services and access to applications for users within a common

organization.

TEST 1 – CCNA1 – JUDET - ACADNET

f. Each end of the network is generally connected to a Telecommunication Service Provider (TSP).

 11.

Refer to the exhibit. Which networking term describes the data interleaving process represented in the graphic?

a. pipingb. PDUc. streamingd. multiplexinge. encapsulation

 12. What is the primary purpose of Layer 4 port assignment?

a. to identify devices on the local mediab. to identify the hops between source and destinationc. to identify to the intermediary devices the best path through the networkd. to identify the source and destination end devices that are communicatinge. to identify the processes or services that are communicating within the end devices

13. What device is considered an intermediary device?a. file serverb. IP phonec. laptopd. printere. switch

14.

TEST 1 – CCNA1 – JUDET - ACADNET

Refer to the exhibit. Which term correctly identifies the device type that is included in the area B?a. sourceb. endc. transferd. intermediary

 15.

Refer to the exhibit. What type of network is shown?a. WANb. MANc. LANd. WLAN

 16. Which layer encapsulates the segment into packets?

a. physicalb. data linkc. networkd. transport

 17. What can be identified by examining the network layer header?

a. the destination device on the local mediab. the destination host address

TEST 1 – CCNA1 – JUDET - ACADNET

c. the bits that will be transferred over the mediad. the source application or process creating the data

 18.

Refer to the exhibit. Which set of devices contains only end devices?a. A, C, Db. B, E, G, Hc. C, D, G, H, I, Jd. D, E, F, H, I, Je. E, F, H, I, J

 19. During the encapsulation process, what occurs at the data link layer?

a. No address is added.b. The logical address is added.c. The physical address is added.d. The process port number is added.

 20. What is the purpose of the TCP/IP Network Access layer?

a. path determination and packet switchingb. data presentationc. reliability, flow control, and error detectiond. network media controle. the division of segments into packets

 21. What is the proper order of the layers of the OSI model from the highest layer to the lowest layer?

a. physical, network, application, data link, presentation, session, transportb. application, physical, session, transport, network, data link, presentationc. application, presentation, physical, session, data link, transport, networkd. application, presentation, session, transport, network, data link, physicale. presentation, data link, session, transport, network, physical, application

22. What application layer protocol is commonly used to support for file transfers between a client and a server?

a. HTML

TEST 1 – CCNA1 – JUDET - ACADNET

b. HTTPc. FTPd. Telnet

 23. What are two forms of application layer software? (Choose two.)

a. applicationsb. dialogsc. requestsd. servicese. syntax

 24. A network administrator is designing a network for a new branch office of twenty-five users. What are the advantages of using a client-server model? (Choose two.)

a. centralized administrationb. does not require specialized softwarec. security is easier to enforced. lower cost implementatione. provides a single point of failure

 25. What is the purpose of resource records in DNS?

a. temporarily holds resolved entriesb. used by the server to resolve namesc. sent by the client to during a queryd. passes authentication information between the server and client

 26. What is the automated service that matches resource names with the required IP address?

a. HTTPb. SSHc. FQDNd. DNSe. Telnetf. SMTP

 27. What three protocols operate at the Application layer of the OSI model? (Choose three.)

a. ARPb. DNSc. PPPd. SMTPe. POPf. ICMP

 28. What are three properties of peer-to-peer applications? (Choose three.)

a. acts as both a client and server within the same communication.b. requires centralized account administration.c. hybrid mode includes a centralized directory of files.d. can be used in client-server networks.e. requires a direct physical connection between devices.f. centralized authentication is required.

 29. Which application layer protocols correctly match a corresponding function? (Choose two.)

a. DNS dynamically allocates IP addresses to hostsb. HTTP transfers data from a web server to a client

TEST 1 – CCNA1 – JUDET - ACADNET

c. POP delivers email from the client to the server email serverd. SMTP supports file sharinge. Telnet provides a virtual connection for remote access

 30. Which email components are used to forward mail between servers? (Choose two.)

a. MDAb. IMAPc. MTAd. POPe. SMTPf. MUA

 31. As compared to SSH, what is the primary disadvantage of telnet?

a. not widely availableb. does not support encryptionc. consumes more network bandwidthd. does not support authentication

 32. Which statements are correct concerning the role of the MTA in handling email? (Choose three.)

a. routes email to the MDA on other serversb. receives email from the client’s MUAc. receives email via the POP3 protocold. passes email to the MDA for final deliverye. uses SMTP to route email between serversf. delivers email to clients via the POP3 protocol

 33. Which two protocols are used to control the transfer of web resources from a web server to a client browser? (Choose two.)

a. ASPb. FTPc. HTMLd. HTTPe. HTTPSf. IP

 34. A small home network has been installed to interconnect three computers together for gaming and file sharing. What two properties represent this network type? (Choose two.)

a. User accounts are centralized.b. Security is difficult to enforce.c. Specialized operating system software is required.d. File permissions are controlled by a single computer.e. A computer that responds to a file sharing request is functioning as a server.

 35. Which layer of the OSI model supplies services that allow user to interface with the network?

a. physicalb. sessionc. networkd. presentatione. applicationf. transport

 

TEST 1 – CCNA1 – JUDET - ACADNET

36. 

 Refer to the exhibit. What is the destination port for the communication that is represented on line 5?

a. 80b. 1261c. 15533d. 3912e. 65520

 37. What are two characteristics of peer-to-peer networks? (Choose two.)

a. scalableb. one way data flowc. decentralized resourcesd. centralized user accountse. resource sharing without a dedicated server

 38. What application layer protocol describes the services that are used for file sharing in Microsoft networks?

a. DHCPb. DNSc. SMBd. SMTPe. Telnet

 39. What are two characteristics of clients in data networks? (Choose two.)

a. use daemonsb. initiate data exchangesc. are repositories of datad. may upload data to serverse. listen for requests from servers

 40. What is the role of the OSI application layer?

a. provides segmentation of datab. provides encryption and conversion of datac. provides the interface between the applications on either end of the networkd. provides control of all the data flowing between the source and destination devices

 

TEST 1 – CCNA1 – JUDET - ACADNET

41. How does the application layer on a server usually process multiple client request for services?a. ceases all connections to the serviceb. denies multiple connections to a single daemonc. suspends the current connection to allow the new connectiond. uses support from lower layer functions to distinguish between connections to the service

42.

Refer to the exhibit. What two pieces of information can be determined from the output that is shown? (Choose two.)

a. The local host is using three client sessions.b. The local host is using web sessions to a remote server.c. The local host is listening for TCP connections using public addresses.d. The local host is using well-known port numbers to identify the source ports.e. The local host is performing the three-way handshake with 192.168.1.101:1037.

 43. After a web browser makes a request to a web server that is listening to the standard port, what will be the source port number in the TCP header of the response from the server?

a. 13b. 53c. 80d. 1024e. 1728

 44. Which information is found in both the TCP and UDP header information?

a. sequencingb. flow controlc. acknowledgmentsd. source and destination

45. Which is an important characteristic of UDP?a. acknowledgement of data deliveryb. minimal delays in data deliveryc. high reliability of data deliveryd. same order data delivery

TEST 1 – CCNA1 – JUDET - ACADNET

46. 

 Refer to the exhibit. Host A is using FTP to download a large file from Server 1. During the download process, Server 1 does not receive an acknowledgment from Host A for several bytes of transferred data. What action will Server 1 take as a result?

a. create a Layer 1 jam signalb. reach a timeout and resend the data that needs to be acknowledgedc. send a RESET bit to the hostd. change the window size in the Layer 4 header

 47. 

Refer to the exhibit. In line 7 of this Wireshark capture, what TCP operation is being performed?a. session establishmentb. segment retransmitc. data transferd. session disconnect

 

TEST 1 – CCNA1 – JUDET - ACADNET

48. 

 Refer to the exhibit. The initial TCP exchange of data between two hosts is shown in the exhibit. Assuming an initial sequence number of 0, what sequence number will be included in Acknowledgment 2 if Segment 6 is lost?

a. 2b. 3c. 6d. 1850e. 3431f. 3475

 49. Why is flow control used for TCP data transfer?

a. to synchronize equipment speed for sent datab. to synchronize and order sequence numbers so data is sent in complete numerical orderc. to prevent the receiver from being overwhelmed by incoming datad. to synchronize window size on the servere. to simplify data transfer to multiple hosts

 50. During a TCP communication session, if the packets arrive to the destination out of order, what will happen to the original message?

a. The packets will not be delivered.b. The packets will be retransmitted from the source.c. The packets will be delivered and reassembled at the destination.d. The packets will be delivered and not reassembled at the destination.

 51. With TCP/IP data encapsulation, which range of port numbers identifies all well-known applications?

a. 0 to 255b. 256 to 1022c. 0 to 1023d. 1024 to 2047e. 49153 to 65535