PREVIOUS YEAR SOLVED PAPERS - August 2016 Paper 2
26. Which of the following statements is not true with respect to microwaves?
- Option : A
- Explanation : Electromagnetic waves with frequencies not ranges from 300 GHz to 400 THz. It ranges from (0.3 to 300) GHz. So, I option is Incorrect. Propagation is line-of-sight.Correct Very high-frequency waves cannot penetrate walls.Correct Use of certain portions of the band requires permission from authorities.Correct So, option (A) is correct.
27. In a fast Ethernet cabling, 100 Base-TX uses ____ cable and maximum segment size is _____.
- Option : A
- Explanation : 100 Base TX, Fast Ethernet, transmits data at 100 Mbps. Segment size is 100 meter and it uses twisted pair cable. Base stands for baseband. So, option (A) is correct.
- Option : B
- Explanation : Throughput is amount of data moved successfully from one place to another place. i.e. 12,000 frames per minute. Each Frame is carrying 10,000 bits So, 12,000 * 10,000 / 60 seconds. = 2 * 1000000 bits / seconds. = 2 Mbps. So, option (B) is correct.
| List - I | List - II |
| a. Session layer | i. Virtual terminal software |
| b. Application layer | ii. Semantics of the information transmitted |
| c. Presentation layer | iii. Flow control |
| d. Transport layer | iv. Manage dialogue control |
Codes:
| a | b | c | d | |
| (1) | iv | i | ii | iii |
| (2) | i | iv | ii | iii |
| (3) | iv | i | iii | ii |
| (4) | iv | ii | i | iii |
- Option : A
- Explanation :
- Session layer manages dialogue control.
- Virtual terminal software is a application layer software.
- Semantics of the information transmitted through presentation layer.
- Transport layer manages flow control.
So, option (A) is correct.
- Option : B
- Explanation :
- POP3 is post office protocol Version 3.POP is a protocol which listens on port 110 and is responsible for accessing the mail service on a client machine. POP3 works in two modes such as Delete Mode and Keep Mode.
- IMAP is Internet Messaged Access Protocol which is used by email server to maintain a central repository that can be accessed from any machine.
- SMTP is simple mail transfer protocol.
- DMSP is distributed mail service protocol.
So, option (B) is correct.
