COMPUTER NETWORK – MULTIPLE CHOICE
1. What are the main components of router?
Routing Processor, Switching Fabric, Input, Output
2. What is the function of ICMP (Internet Control Message Protocol) in the
network layer?
To report errors and provide diagnostic information
3. Which protocol is commonly used for control plane communication in a Border
Gateway Protocol (BGP) environment?
TCP (Transmission Control Protocol)
4. ICMP stands for
Internet Control Message Protocol
5. What is the drawback of the distance vector routing algorithm?
It is susceptible to routing loops and count-to-infinity issues
6. Which protocol is commonly used in SDN to communicate between the control
plane and data plane?
OpenFlow
7. Which protocol is commonly used for the dynamic allocation of IPv4
addresses?
Dynamic Host Configuration Protocol (DHCP)
8. ICMP is a protocol used for
Error reporting and diagnostic messages
9. What is the advantage of using the link state routing algorithm over the
distance vector algorithm?
It provides faster convergence in large networks
10. Which protocol operates at the network layer to deliver packets across
different networks?
IP (Internet Protocol)
11. Which routing algorithm is based on the concept of link-state
information?
Open Shortest Path First (OSPF)
12. What is the role of the OpenFlow protocol in SDN?
It enables communication between the SDN controller and network devices
13. What is the structure of IPv4 address?
Network portion and host portion
14. Which network device is responsible for hosting the control plane
functions in a computer network?
Router
15. What is the drawback of the link state routing algorithm?
It is less scalabel for large networks
16. Which of the following is NOT a function of the control plane?
Data packet forwarding
17. How does IPv6 handle the issue of Network Address Translation (NAT) in
IPv4?
It eliminates the need for NAT by providing a large address space
18. What is the advantage of using the distance vector routing algorithm
over the link state routing algorithm?
It requires less memory and processing resources
19. How does the switching fabric impact the performance of a router?
It determines the maximum throughput and latency of the router
20. What is the purpose of the subnet mask in an IPv4 address?
To identify the network portion of the address
21. Which routing algorithm is based on the concept of exchanging routing
information between neighboring routers?
Distance Vector Routing Algorithm
22. What is the control plane in computer networking?
The part of the network responsible for controlling and managing network
devices
23. How does a router share its routing table information in the distance
vector routing algorithm?
By sending the information directly to neighboring routers
24. Which of the following is a characteristic of the data plane in the
network layer?
It focuses on the efficient forwarding of packets
25. Which layer of the OSI model corresponds to the network layer?
Layer 3
26. ICMP is closely associated with which protocol?
IP (Internet Protocol)
27. Which component of a router is responsible for processing and
forwarding data packets?
Switching Fabric
28. What is the purpose of Network Address Translation (NAT) in IPv4?
To translate private IP addresses to public IP addresses for internet
connectivity
29. How is an IPv6 address written?
In hexadecimal format
30. Which of the following is an example of an SDN controller?
OpenDaylight
31. Which statement about Static NAT is correct?
It allows for one-to-many IP address translation
32. What is the advantage of using SDN in network layer management?
Simplified network management and configuration
33. Which of the following is NOT a switching technique used in router?
Token
34. Which component of a network device is responsible for executing
control plane functions?
Central Processing Unit (CPU)
35. Which statement about ICMP is correct?
ICMP messages are always sent in response to specific events
36. Which statement about the link state routing algorithm is correct?
It provides a more accurate representation of network topology than distance
vector routing algorithms
37. What information does a router maintain in the link state database in
the link state routing algorithm?
Topology information of the entire network
38. Which ICMP messages type is used to test the reachability of a host or
network (i.e. ping)?
Echo Request
39. What is tunneling in the context of IPv6 transition?
Encapsulating IPv6 packets within IPv4 packets for transport across IPv4
networks
40. Which algorithm is used by routers to determine the shortest path in the
distance vector routing algorithm?
Bellman-Ford algorithm
41. What is the default subnet mask for a class C IPv4 address?
255.255.255.0
42. Which statement about BGP is correct?
It is a protocol used for routing between different autonomous systems (AS)
43. What is the maximum number of unique IPv4 addresses?
4 billion
44. What is the primary function of the data plane in the network layer?
Forwarding packets between network devices
45. Which of the following devices operate at the data plane in the network
layer?
Router
46. What is the structure of an IPv6 address?
Prefix and suffix
47. What is the main concept behind SDN?
Centralized control and programmability of network infrastructure
48. In network layer, what is the purpose of Quality of Service (QoS)
mechanism?
To prioritize certain types of network traffic
49. Which device is typically responsible for performing NAT?
Router
50. How does a router calculate the shortest path to a destination in the link
state routing algorithm?
By running Dijkstra’s algorithm on the link state database
51. How does SDN improve network agility in the network layer?
It allows for rapid deployment and reconfiguration of network services
52. Which classful address range is reserved for multicast addresses?
Class D
53. How dose the link state routing algorithm handle network changes or
failures?
By recalculating the shortest path using Dijkstra’s algorithm
54. How does a router share its link state information in the link state
routing algorithm?
By flooding the information to all routers in the network
55. Which of the following is NOT an example of a control plane protocol
used for routing in the Internet?
Internet Control Message Protocol
56. Which of the following characteristic of the link state routing algorithm?
It converges quickly in large networks
57. Which of the following is an example of an addressing scheme used in
the network layer?
IPv4 (Internet Protocol version 4)
58. Which protocol is commonly used for control plane communication
between network devices?