[Chapter 5 Quiz] Comp 20173 Data Communication And Networking

10 Questions | By Santoshomer5 | Updated: Feb 3, 2023 | Attempts: 237

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[Chapter 5 Quiz] Comp 20173 Data Communication And Networking - Quiz

Chapter 5: OSI Network Layer

Questions and Answers

1.

Which protocol provides connectionless network layer services?
- A.
  
  IP
- B.
  
  TCP
- C.
  
  UDP
- D.
  
  None of these
2.

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.
- E.
  
  None of these
3.

Why is 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.
- E.
  
  None of these
4.

TCP is a [Blank] layer protocol.
5.

How many bits are in an IPv4 address? [Blank]
6.

What type of routing uses information that is manually entered into the routing table?
- A.
  
  Dynamic
- B.
  
  Static
- C.
  
  None of the above
- D.
  
  Both Dynamic and Static
7.

Select THREE PIECES of information about a route that a routing table contains.
- A.
  
  Next-hop
- B.
  
  Source address
- C.
  
  Metric
- D.
  
  Destination network address
- E.
  
  Last hop
- F.
  
  Default gateway
8.

What are the key factors to consider when grouping hosts into a common network? (CHOOSE THREE)
- A.
  
  Gateways
- B.
  
  Purpose
- C.
  
  Physical Addressing
- D.
  
  Software Version
- E.
  
  Geographic Location
- F.
  
  Ownership
9.

Which of the following are not functions of the network layer? (CHOOSE TWO)
- A.
  
  Routing
- B.
  
  Addressing packets with an IP address
- C.
  
  Delivery reliability
- D.
  
  Application data analysis
- E.
  
  Encapsulation
- F.
  
  Decapsulation
10.

IP is connectionless and will occasionally drop a packet en route to a destination IP address. If packets are dropped, how will messages be completed?
- A.
  
  Only the IP portion of the packet is dropped, but the TCP portion continues to the last router.
- B.
  
  The routing protocols will carry the TCP information to the previous-hop router, which sends a reverse notification to the source.
- C.
  
  The routing protocols, such as RIP, are connection oriented and will contact the source host.
- D.
  
  The destination host is expecting the packet and will send a request if it does not arrive.
- E.
  
  The IP header contains the source address so that the packet can be returned by the router that receives the packet when the TTL is 0.