McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Master of Computer Applications (MCA) .
Chapters
| 1. |
Layer 2 from bottom in TCP/IP is the ___________. |
| A. | Physical layer |
| B. | Application layer |
| C. | Transport layer |
| D. | Internet layer |
| Answer» D. Internet layer | |
| 2. |
IP address___________ the physical address. |
| A. | is the same as |
| B. | has no relation with |
| C. | means |
| D. | none |
| Answer» B. has no relation with | |
| 3. |
IP makes a __________ of datagram delivery. |
| A. | worst effort |
| B. | guaranteed delivery |
| C. | best effort |
| D. | all of the above |
| Answer» C. best effort | |
| 4. |
The _________ for all computers on the same physical network is the same. |
| A. | host id |
| B. | physical address |
| C. | IP address |
| D. | n/w-id |
| Answer» D. n/w-id | |
| 5. |
In _______ forwarding, the mask and destination addresses are both 0.0.0.0 in the routing table. |
| A. | next-hop |
| B. | network-specific |
| C. | host-specific |
| D. | default |
| Answer» D. default | |
| 6. |
In _______ forwarding, the destination address is a network address in the routing table. |
| A. | next-hop |
| B. | network-specific |
| C. | host-specific |
| D. | default |
| Answer» B. network-specific | |
| 7. |
In _______ forwarding, the routing table holds the address of just the next hop instead of complete route information. |
| A. | next-hop |
| B. | network-specific |
| C. | host-specific |
| D. | default |
| Answer» A. next-hop | |
| 8. |
The idea of address aggregation was designed to alleviate the increase in routing table entries when using ________. |
| A. | classful addressing |
| B. | classless addressing |
| C. | both a and b |
| D. | none of the above |
| Answer» B. classless addressing | |
| 9. |
The principle of ________ states that the routing table is sorted from the longest mask to the shortest mask. |
| A. | first mask matching |
| B. | shortest mask matching |
| C. | longest mask matching |
| D. | none of the above |
| Answer» C. longest mask matching | |
| 10. |
The use of hierarchy in routing tables can ________ the size of the routing tables. |
| A. | reduce |
| B. | increase |
| C. | both a and b |
| D. | none of the above |
| Answer» A. reduce | |
| 11. |
An ARP reply is normally _______. |
| A. | broadcast |
| B. | multicast |
| C. | unicast |
| D. | none of the above |
| Answer» C. unicast | |
| 12. |
An ARP request is normally _______. |
| A. | broadcast |
| B. | multicast |
| C. | unicast |
| D. | none of the above |
| Answer» A. broadcast | |
| 13. |
A technique called ______ is used to create a subnetting effect. |
| A. | ARP |
| B. | RARP |
| C. | proxy ARP |
| D. | none of the above |
| Answer» C. proxy ARP | |
| 14. |
A _______ is an ARP that acts on behalf of a set of hosts. |
| A. | ARP |
| B. | RARP |
| C. | proxy ARP |
| D. | none of the above |
| Answer» C. proxy ARP | |
| 15. |
ICMP is a _________ layer protocol. |
| A. | data link |
| B. | transport |
| C. | network |
| D. | none of the above |
| Answer» C. network | |
| 16. |
ICMP messages are divided into two broad categories: _____________. |
| A. | query and error reporting messages |
| B. | request and response messages |
| C. | request and reply messages |
| D. | none of the above |
| Answer» A. query and error reporting messages | |
| 17. |
An ICMP message has _____ header and a variable-size data section. |
| A. | a 16-byte |
| B. | a 32-byte |
| C. | an 8-byte |
| D. | none of the above |
| Answer» C. an 8-byte | |
| 18. |
Which of the following is true about ICMP messages? |
| A. | An ICMP error message may be generated for an ICMP error message. |
| B. | An ICMP error message may be generated for each fragment. |
| C. | An ICMP error message may be generated for a multicast datagram. |
| D. | none is true |
| Answer» D. none is true | |
| 19. |
Which of the following is true about ICMP messages? |
| A. | An ICMP error message may be generated for an ICMP error message. |
| B. | An ICMP error message may be generated only for the first fragment. |
| C. | An ICMP error message may be generated for a multicast datagram. |
| D. | none is true |
| Answer» B. An ICMP error message may be generated only for the first fragment. | |
| 20. |
IGMP is a companion to the ______ protocol. |
| A. | UDP |
| B. | TCP |
| C. | ICM |
| D. | None of the above |
| Answer» D. None of the above | |
| 21. |
IGMP is _______ protocol. |
| A. | an error reporting |
| B. | a group management |
| C. | a transmission |
| D. | none of the above |
| Answer» B. a group management | |
| 22. |
The number of addresses in a class A block is _______. |
| A. | 65,534 |
| B. | 16,777,216 |
| C. | 256 |
| D. | none of the above |
| Answer» B. 16,777,216 | |
| 23. |
The number of addresses assigned to an organization in classless addressing _______. |
| A. | can be any number |
| B. | must be a multiple of 256 |
| C. | must be a power of 2 |
| D. | none of the above |
| Answer» C. must be a power of 2 | |
| 24. |
The first address assigned to an organization in classless addressing _______. |
| A. | must be a power of 4 |
| B. | must be evenly divisible by the number of addresses |
| C. | must belong to one of the A, B, or C classes |
| D. | none of the above |
| Answer» B. must be evenly divisible by the number of addresses | |
| 25. |
Which address could be the beginning address of a block of 32 classless addresses? |
| A. | 2.4.6.5 |
| B. | 2.4.6.16 |
| C. | 2.4.6.64 |
| D. | none of the above |
| Answer» C. 2.4.6.64 | |
| 26. |
A ________ is a local address. Its jurisdiction is over a local network. |
| A. | physical |
| B. | logical |
| C. | a and b |
| D. | none of the above |
| Answer» A. physical | |
| 27. |
If the sender is a host and wants to send a packet to another host on the same network, the logical address that must be mapped to a physical address is ______. |
| A. | the destination IP address in the datagram header |
| B. | the IP address of the router found in the routing table |
| C. | either a or b |
| D. | none of the above |
| Answer» A. the destination IP address in the datagram header | |
| 28. |
If the sender is a host and wants to send a packet to another host on another network, the logical address that must be mapped to a physical address is ______. |
| A. | the destination IP address in the datagram header |
| B. | the IP address of the router found in the routing table |
| C. | either a or b |
| D. | none of the above |
| Answer» B. the IP address of the router found in the routing table | |
| 29. |
The sender is a router that has received a datagram destined for a host on another network. The logical address that must be mapped to a physical address is ______. |
| A. | the destination IP address in the datagram header |
| B. | the IP address of the router found in the routing table |
| C. | either a or b |
| D. | none of the above |
| Answer» B. the IP address of the router found in the routing table | |
| 30. |
The sender is a router that has received a datagram destined for a host on the same network. The logical address that must be mapped to a physical address is ______. |
| A. | the destination IP address in the datagram header |
| B. | the IP address of the router found in the routing table |
| C. | either a or b |
| D. | none of the above |
| Answer» A. the destination IP address in the datagram header | |
| 31. |
Which one of the following is not a function of network layer? |
| A. | routing |
| B. | inter-networking |
| C. | congestion control |
| D. | none of the above |
| Answer» D. none of the above | |
| 32. |
The 4 byte IP address consists of |
| A. | network id |
| B. | host id |
| C. | both (a) and (b) |
| D. | none of the above |
| Answer» C. both (a) and (b) | |
| 33. |
In virtual circuit network each packet contains |
| A. | full source and destination address |
| B. | a short VC number |
| C. | both (a) and (b) |
| D. | none of the above |
| Answer» B. a short VC number | |
| 34. |
Which one of the following routing algorithm can be used for network layer design? |
| A. | shortest path algorithm |
| B. | distance vector routing |
| C. | link state routing |
| D. | all of the above |
| Answer» D. all of the above | |
| 35. |
Multi-destination routing |
| A. | is same as broadcast routing |
| B. | contains the list of all destinations |
| C. | data is not sent by packets |
| D. | none of the above |
| Answer» C. data is not sent by packets | |
| 36. |
A subset of a network that includes all the routers but contains no loops is called |
| A. | spanning tree |
| B. | spider structure |
| C. | spider tree |
| D. | none |
| Answer» A. spanning tree | |
| 37. |
Which one of the following algorithm is not used for congestion control? |
| A. | traffic aware routing |
| B. | admission control |
| C. | load shedding |
| D. | none |
| Answer» D. none | |
| 38. |
The network layer protocol of internet is |
| A. | Ethernet |
| B. | internet protocol |
| C. | hypertext transfer protocol |
| D. | none of the above |
| Answer» B. internet protocol | |
| 39. |
ICMP is primarily used for |
| A. | error and diagnostic functions |
| B. | addressing |
| C. | forwarding |
| D. | none of the above |
| Answer» A. error and diagnostic functions | |
| 40. |
The PDU of network layer is |
| A. | bits |
| B. | frames |
| C. | packets |
| D. | none |
| Answer» C. packets | |
| 41. |
Which of the following is a wrong example of network layer? |
| A. | Internet Protocol (IP) - ARPANET |
| B. | X.25 Packet Level Protocol (PLP)-ISO |
| C. | Source routing and domain naming-USENet |
| D. | X.25 level 2-ISO |
| Answer» D. X.25 level 2-ISO | |
| 42. |
For data communications to occur, the communicating devices must be part of a communication system made up of a combination of? |
| A. | WAN and LAN |
| B. | Hardware and software |
| C. | Full duplex and half duplex |
| D. | All of the above |
| Answer» B. Hardware and software | |
| 43. |
Time required for a message to travel from one device to another is known as: |
| A. | Transit time |
| B. | Dialogue time |
| C. | Response time |
| D. | Wait time |
| Answer» A. Transit time | |
| 44. |
Which network is a cross between circuits switched network and a data-gram network? |
| A. | Circuit-switched network |
| B. | Virtual-circuit network |
| C. | Virtual-circuit identifier |
| D. | None of these |
| Answer» B. Virtual-circuit network | |
| 45. |
Switching at the network layer in the Internet uses the datagram approach to: |
| A. | Message switching |
| B. | Circuit switching |
| C. | IP switching |
| D. | Packet switching |
| Answer» D. Packet switching | |
| 46. |
Which is also known as a connectionless protocol for a packet-switching network that uses the Datagram approach? |
| A. | IPV5 |
| B. | IPV4 |
| C. | IPV6 |
| D. | None of these |
| Answer» B. IPV4 | |
| 47. |
Which switch is a multistage switch with micro switches at each stage that route the packets based on the output port represented as a binary string? |
| A. | Banyan switch |
| B. | Crossbar switch |
| C. | Multistage crossbar |
| D. | Packet switch |
| Answer» A. Banyan switch | |
| 48. |
In Address Resolution Protocol (ARP), a packet is encapsulated directly into a |
| A. | Data link Integer |
| B. | data link IP |
| C. | Data link Station |
| D. | Data link Frame |
| Answer» D. Data link Frame | |
| 49. |
Subnetting is actually |
| A. | collection of networks |
| B. | sub division of networks |
| C. | one sub network |
| D. | None |
| Answer» B. sub division of networks | |
| 50. |
Packets in IPv4 layer are called |
| A. | datagrams |
| B. | header length |
| C. | code point |
| D. | tunneling |
| Answer» A. datagrams | |
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