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. |
Transport layer protocols are useful for ensuring ______________ delivery. |
| A. | H-2-H |
| B. | H-2-R |
| C. | N/W-2-N/W |
| D. | End-2-End |
| Answer» A. H-2-H | |
| 2. |
_______________is a reliable delivery mechanism. |
| A. | IP |
| B. | TCP |
| C. | UDP |
| D. | ARP |
| Answer» B. TCP | |
| 3. |
Transport layer is _____________ the data link layer. |
| A. | Above |
| B. | Below |
| C. | Depended on |
| D. | None of the above |
| Answer» A. Above | |
| 4. |
When a packet is lost in transit, it should be handled by _____________. |
| A. | Sequence control |
| B. | Loss control |
| C. | Error control |
| D. | Duplication control |
| Answer» A. Sequence control | |
| 5. |
Internet is |
| A. | a local computer network |
| B. | a worldwide network of computers |
| C. | an interconnected network of computers |
| D. | a worldwide interconnected network of computers which use a common protocol |
| Answer» D. a worldwide interconnected network of computers which use a common protocol | |
| 6. |
World Wide Web |
| A. | is another name for internet |
| B. | worldwide connection for computers |
| C. | a collection of linked information residing on computers connected by the internet |
| D. | a collection of worldwide information |
| Answer» C. a collection of linked information residing on computers connected by the internet | |
| 7. |
HTML tags define |
| A. | The data types of elements of document |
| B. | Presentation of specified elements of a document |
| C. | The contents of the document |
| D. | The structure of the document |
| Answer» B. Presentation of specified elements of a document | |
| 8. |
One of the responsibilities of the transport layer protocol is to create a ______ communication. |
| A. | host-to-host |
| B. | process-to-process |
| C. | node-to-node |
| D. | none of the above |
| Answer» B. process-to-process | |
| 9. |
UDP is called a ________________transport protocol. |
| A. | connectionless, reliable |
| B. | connection-oriented, unreliable |
| C. | connectionless, unreliable |
| D. | none of the above |
| Answer» C. connectionless, unreliable | |
| 10. |
UDP does not add anything to the services of IP except for providing _______ communication. |
| A. | node-to-node |
| B. | process-to-process |
| C. | host-to-host |
| D. | none of the above |
| Answer» B. process-to-process | |
| 11. |
UDP is an acronym for _______. |
| A. | User Delivery Protocol |
| B. | User Datagram Procedure |
| C. | User Datagram Protocol |
| D. | None of the above |
| Answer» C. User Datagram Protocol | |
| 12. |
Although there are several ways to achieve process-to-process communication, the most common is through the __________ paradigm. |
| A. | client-server |
| B. | client-client |
| C. | server-server |
| D. | none of the above |
| Answer» A. client-server | |
| 13. |
The local host and the remote host are defined using IP addresses. To define the processes, we need second identifiers called ____________. |
| A. | UDP addresses |
| B. | transport addresses |
| C. | port addresses |
| D. | none of the above |
| Answer» C. port addresses | |
| 14. |
The ports ranging from 49,152 to 65,535 can be used as temporary or private port numbers. They are called the ________ ports. |
| A. | well-known |
| B. | registered |
| C. | dynamic |
| D. | none of the above |
| Answer» C. dynamic | |
| 15. |
In the sending computer, UDP receives a data unit from the _______ layer. |
| A. | application |
| B. | transport |
| C. | IP |
| D. | none of the above |
| Answer» A. application | |
| 16. |
In the sending computer, UDP sends a data unit to the _______ layer. |
| A. | application |
| B. | transport |
| C. | IP |
| D. | none of the above |
| Answer» C. IP | |
| 17. |
UDP and TCP are both _______ layer protocols. |
| A. | data link |
| B. | network |
| C. | transport |
| D. | none of the above |
| Answer» C. transport | |
| 18. |
Which of the following functions does UDP perform? |
| A. | process-to-process communication |
| B. | host-to-host communication |
| C. | end-to-end reliable data delivery |
| D. | none of the above |
| Answer» A. process-to-process communication | |
| 19. |
When the IP layer of a receiving host receives a datagram, _______. |
| A. | delivery is complete |
| B. | a transport layer protocol takes over |
| C. | a header is added |
| D. | none of the above |
| Answer» B. a transport layer protocol takes over | |
| 20. |
UDP needs the _______ address to deliver the user datagram to the correct application process. |
| A. | port |
| B. | application |
| C. | internet |
| D. | none of the above |
| Answer» A. port | |
| 21. |
A port address in UDP is _______bits long. |
| A. | 8 |
| B. | 16 |
| C. | 32 |
| D. | any of the above |
| Answer» B. 16 | |
| 22. |
Which of the following does UDP guarantee? |
| A. | flow control |
| B. | connection-oriented delivery |
| C. | flow control |
| D. | none of the above |
| Answer» D. none of the above | |
| 23. |
Message _______ means that the receiver is ensured that the message is coming from the intended sender, not an imposter. |
| A. | confidentiality |
| B. | integrity |
| C. | authentication |
| D. | none of the above |
| Answer» C. authentication | |
| 24. |
_________ means that a sender must not be able to deny sending a message that he sent. |
| A. | Confidentiality |
| B. | Integrity |
| C. | Authentication |
| D. | Non-repudiation |
| Answer» D. Non-repudiation | |
| 25. |
________ means to prove the identity of the entity that tries to access the system's resources. |
| A. | Message authentication |
| B. | Entity authentication |
| C. | Message confidentiality |
| D. | none of the above |
| Answer» B. Entity authentication | |
| 26. |
A(n) _________ can be used to preserve the integrity of a document or a message. |
| A. | message digest |
| B. | message summary |
| C. | encrypted message |
| D. | none of the above |
| Answer» A. message digest | |
| 27. |
A(n) ________function creates a message digest out of a message. |
| A. | encryption |
| B. | decryption |
| C. | hash |
| D. | none of the above |
| Answer» C. hash | |
| 28. |
A hash function must meet ________ criteria. |
| A. | two |
| B. | three |
| C. | four |
| D. | none of the above |
| Answer» B. three | |
| 29. |
Challenge-response authentication can be done using ________. |
| A. | symmetric-key ciphers |
| B. | asymmetric-key ciphers |
| C. | keyed-hash functions |
| D. | all of the above |
| Answer» D. all of the above | |
| 30. |
A(n) _____ is a trusted third party that assigns a symmetric key to two parties. |
| A. | KDC |
| B. | CA |
| C. | KDD |
| D. | none of the above |
| Answer» A. KDC | |
| 31. |
The _____________ translates internet domain and host names to IP address. |
| A. | domain name system |
| B. | routing information protocol |
| C. | network time protocol |
| D. | internet relay chat |
| Answer» A. domain name system | |
| 32. |
Which one of the following allows a user at one site to establish a connection to another site and then pass keystrokes from local host to remote host? |
| A. | HTTP |
| B. | FTP |
| C. | telnet |
| D. | none |
| Answer» C. telnet | |
| 33. |
Application layer protocol defines |
| A. | types of messages exchanged |
| B. | message format, syntax and semantics |
| C. | rules for when and how processes send and respond to messages |
| D. | all of the above |
| Answer» D. all of the above | |
| 34. |
Which one of the following protocol delivers/stores mail to reciever server? |
| A. | simple mail transfer protocol |
| B. | post office protocol |
| C. | internet mail access protocol |
| D. | hypertext transfer protocol |
| Answer» A. simple mail transfer protocol | |
| 35. |
Which one of the following is an internet standard protocol for managing devices on IP network? |
| A. | dynamic host configuration protocol |
| B. | simple network management protocol |
| C. | internet message access protocol |
| D. | media gateway protocol |
| Answer» B. simple network management protocol | |
| 36. |
User datagram protocol is called connectionless because |
| A. | all UDP packets are treated independently by transport layer |
| B. | it sends data as a stream of related packets |
| C. | both (a) and (b) |
| D. | none of the above |
| Answer» A. all UDP packets are treated independently by transport layer | |
| 37. |
Transmission control protocol is |
| A. | connection oriented protocol |
| B. | uses a three way handshake to establish a connection |
| C. | recievs data from application as a single stream |
| D. | all of the above |
| Answer» D. all of the above | |
| 38. |
An endpoint of an inter-process communication flow across a computer network is called |
| A. | socket |
| B. | pipe |
| C. | port |
| D. | none of the above |
| Answer» A. socket | |
| 39. |
Transport layer aggregates data from different applications into a single stream before passing it to |
| A. | network layer |
| B. | data link layer |
| C. | application layer |
| D. | physical layer |
| Answer» A. network layer | |
| 40. |
The ASCII encoding of binary data is called |
| A. | base 64 encoding |
| B. | base 32 encoding |
| C. | base 16 encoding |
| D. | base 8 encoding |
| Answer» A. base 64 encoding | |
| 41. |
A high speed communication equipment typically would not be needed for |
| A. | |
| B. | Transferring large volume of data |
| C. | Supporting communication between nodes in a LAN |
| D. | All of these |
| Answer» A. E-mail | |
| 42. |
What is Unicode? |
| A. | Represents symbol or characters used in any langua |
| B. | Only few languages are supported |
| C. | Supports only few characters |
| D. | Characters from A to Z |
| Answer» A. Represents symbol or characters used in any langua | |
| 43. |
In OSI model dialogue control and token management are responsibilities of ? |
| A. | Session Layer |
| B. | Network layer |
| C. | Transport layer |
| D. | Data link layer |
| Answer» A. Session Layer | |
| 44. |
An asymmetric-key (or public-key) cipher uses |
| A. | 1 Key |
| B. | 2 Key |
| C. | 3 Key |
| D. | 4 Key |
| Answer» B. 2 Key | |
| 45. |
A straight permutation cipher or a straight P-box has same number of inputs as |
| A. | cipher |
| B. | Frames |
| C. | Outputs |
| D. | Bits |
| Answer» C. Outputs | |
| 46. |
Man-in-the-middle attack can endanger security of Diffie-Hellman method if two parties are not |
| A. | Authenticated |
| B. | Joined |
| C. | Submit |
| D. | Separate |
| Answer» A. Authenticated | |
| 47. |
We use Cryptography term to transforming messages to make them secure and immune to |
| A. | Change |
| B. | Idle |
| C. | Attacks |
| D. | Defend |
| Answer» C. Attacks | |
| 48. |
Shift cipher is sometimes referred to as the |
| A. | Caesar cipher |
| B. | Shift cipher |
| C. | cipher |
| D. | cipher text |
| Answer» A. Caesar cipher | |
| 49. |
Substitutional cipers are |
| A. | Monoalphabatic |
| B. | Sami alphabetic |
| C. | polyalphabetic |
| D. | both a and c |
| Answer» D. both a and c | |
| 50. |
Heart of Data Encryption Standard (DES), is the |
| A. | Cipher |
| B. | Rounds |
| C. | Encryption |
| D. | DES function |
| Answer» D. DES function | |
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