Nt1310 Unit 3 Quiz

Name: ______________________________________ Year/Section: __________ Date:________________

I. Read the questions carefully and encircle the best answer. (No erasures.)

1. Which characteristics are part of TCP? (Choose two)
a. Reliable c. No flow control
b. Connectionless d. Resends anything not received
2. End system use port numbers to select the proper application what is the lowest port number that can be dynamically assigned by the host system?
a. 1 b. 128
b. 256 d. 1024
3. During data transfer, what is the receiving host responsible for? (Choose the best two answers).
a. Encapsulation d. segmentation
b. Acknowledgement e. reassembly
c. Bandwidth
4. Why does tcp use a sequence number in the header?
a. To
reassemble the segments into data
b. To identify the application layer protocol
c. To indicate the number of the next expected byte
d. To show the maximum number of bytes allowed during the session
5. What is the purpose of TCP/UDP numbers?
a. To track the different conversations crossing the network at the same time.
b. To indicate the beginning of a three-handshake
c. To reassemble the segments into the correct order
d. To indentify the number or data packets that can be sent without acknowledgement
6. Which layer of the OSI layer is connected with end-to-end message delivery over the network?
a. Network c. Data link
b. Transport d. Application
7. Which layers of the OSI model are combined into other layers of the TCP/IP model? (Choose all that apply)
a. Network e. Application
b. Presentation f. Physical
c. Internet g. Session
d. Data link h. Network access
e. Application I. Transport
8. Which of the following is associated with network layer?
a. IP address c. Frames
b. MAC address d. physical address
9. Which of the following is the process for interweaving multiple data streams onto one shared communication channel or network medium?
a. Multicasting c. multiplexing
b. Encapsulation d. multithreading
10. Which of the following OSI layer is associated with MAC address?
a. 1 c. 3
b. 2 d. 4
11. FTP requires _____________ connection(s) between client and server to successfully transfer files.
a. 1 c. 3
b. 2 d. 4
12. What is GET?
a. A client request for data
b. A protocol that uploads resources or content to the web server
c. A protocol that uploads information to the server in plain text that can be intercepted and read
d. A response from a server
13. Select three pieces of information about a route that a routing table contains.
a. Next-hop d. destination network address
b. Source address e. metric
c. Last hop f. default gateway
14. Which of the following is not a function of a network layer?
a. Routing e. Encapsulation
b. Delivery reliability f. Decapsulation
c. Addressing packets with an IP address
d. Application data analysis
15. Which of the following is true about IP?
a. It is connection oriented
b. It uses application data to determine the best path
c. It is used by both routers and hosts
d. It is reliable.
16. Which of the following is true about network layer encapsulation? (Choose two)
a. It adds a header to a segment
b. It can happen many times on the path to the destination
c. It is performed by the last router on the path
d. Both source and destination IP addresses are added.
e. It converts transport layer information into a frame.
17. Which of the following is true about TCP and IP? (Choose two)
a. TCP is connectionless and IP is connection oriented
b. TCP is reliable and IP is unreliable
c. IP is connectionless and TCP is connection oriented
d. TCP is unreliable and IP is reliable
e. IP operates at the transport layer
18. Why IP “media independent”?
a. It encapsulates Layer 1 instructions
b. It works the same on all layer 1 media
c. It carries both video and voice data
d. It works without layer 1 media.
19. Which is true about static and dynamic routing? (Choose two)
a. Static routing requires a routing protocol such as RIP
b. A default route is dynamic route
c. Dynamic routing adds packet-processing overhead
d. Administrative overhead is reduced with static routing
e. Routers can use static and dynamic routing simultaneously.
20. What is the protocol number for UDP?
a. 1 c. 3
b. 6 d. 17
21. What is PDU?
a. corruption of a frame during transmission
b. data reassembled at the destination
c. retransmitted packets due to lost communication
d. a layer specific encapsulation

22. What device is considered an intermediary device?
a. File server c. IP phone
b. Laptop e. switch
c. printer
23. Refer to the exhibit. Which three labels correctly identify the network types for the network segments that are shown? (Choose three.)

a. Network A – WAN d. Network B – MAN
b. Network B – WAN e. Network C – WAN
c. Network C – LAN f. Network A -- LAN
24. Which statements correctly identify the role of intermediary devices in the network? (Choose three.)
a.
determine pathways for data d. originate the flow of data
b. initiate data communications e. manage data flows
c. retime and retransmit data signals f. final termination point for data flow
25. Refer to the exhibit. The network in the exhibit is fully operational. What two statements correctly describe the routing for the topologythat is shown? (Choose two.)

a. 192.168.0.2 is the next-hop address that is used by R3 to route a packet from the 10.0.0.0 network to the 172.16.0.0 network.
b. 10.0.0.1 is the next-hop address that is used by R1 to route a packet from the 192.168.12.0 network to the 10.0.0.0 network
c. 192.168.0.1 is the next-hop address that is used by R1 to route a packet from the 192.168.12.0 network to the 172.16.0.0 network.
d. 192.168.0.1 is the next-hop address that is used by R2 to route a packet from the 172.16.0.0 network to the 192.168.12.0network
e. 192.168.0.2 is the next-hop address that is used by R2 to route a packet from the 172.16.0.0 network to the 192.168.12.0 network

26. Refer to the exhibit. Using the network in the exhibit, what would be the default gateway address for host A in the 192.133.219.0network?

a. 192.135.250.1 c. 192.133.219.0
b. 192.31.7.1 d.
192.133.219.1

27. Which IP packet field will prevent endless loops?
a. type-of-service c. time-to-live
b. identification d. header checksum

28. Is eBay a peer-to-peer or client/server application?

29. How many bits are there in IPv4 address?

30. TCP is a _________layer protocol.

31. What is the process of removing the OSI layer 2 information from an IP packet?

32. What are the three factors to consider when grouping hosts into a common network?

II. What is the port number of the following:

a. DNS e. Telnet
b. HTTP f. POP
c. SMTP g. IM
d. FTP h. TFTP

III. Draw the OSI model with the corresponding PDU in each layer.