Networking :: All Aptitude Test ::

1. ESP does not provide ?
A. source authentication
B. data integrity
C. privacy
D. source authentication

2. In computer security means that computer system assets can be modified only by authorized parities?
A. confidentiality
B. integrity
C. availability
D. confidentiality

3. In computer security means that the information in a computer system only be accessible for reading by authorized parities?
A. confidentiality
B. integrity
C. availability
D. confidentiality

4. Which of the following organizations is primarily concerned with military encryption systems?
A. NSA
B. NIST
C. IEEE
D. NSA

5.Which is not a application layer protocol?
A. HTTP
B. SMTP
C. FTP
D. HTTP

6.The packet of information at the application layer is called ?
A. Packet
B. Message
C. Segment
D. Packet

7.Which one of the following is an architecture paradigms?
A. Peer to peer
B. Client-server
C. HTTP
D. Peer to peer

8. Application developer has permission to decide the following on transport layer side?
A. Transport layer protocol
B. Maximum buffer size
C. Both Transport layer protocol and Maximum buffer size
D. Transport layer protocol

9. Application layer offers service?
A. End to end
B. Process to process
C. Both End to end and Process to process
D. End to end

10. E-mail is ?
A. Loss-tolerant application
B. Bandwidth-sensitive application
C. Elastic application
D. Loss-tolerant application

11.Pick the odd one out?
A. File transfer
B. File download
C. E-mail
D. File transfer

12.Which of the following is an application layer service?
A. Network virtual terminal
B. File transfer, access, and management
C. Mail service
D. Network virtual terminal

13.To deliver a message to the correct application program running on a host, the address must be consulted?
A. IP
B. MAC
C. Port
D. IP

14. Which is a time-sensitive service?
A. File transfer
B. File download
C. E-mail
D. File transfer

15. Transport services available to applications in one or another form?
A. Reliable data transfer
B. Timing
C. Security
D. Reliable data transfer

16.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. network layer

17.The physical layer is concerned with the movement of _______ over the physical medium.
A. programs
B. dialogs
C. protocols
D. programs

18.The _______ is the physical path over which a message travels.
A. Protocol
B. Medium
C. Signal
D. Protocol

19.Before data can be transmitted, they must be transformed to ________?
A. periodic signals
B. electromagnetic signals
C. aperiodic signals
D. periodic signals

20.A periodic signal completes one cycle in 0.001 s. What is the frequency?
A. 1 Hz
B. 100 Hz
C. 1 KHz
D. 1 Hz

21.The physical layer concerns with:
A. bit-by-bit delivery
B. process to process delivery
C. application to application delivery
D. bit-by-bit delivery

22.The physical layer translates logical communication requests from the ______ into hardware specific operations.
A. data link layer
B. network layer
C. trasnport layer
D. data link layer

23.The term ......... describes the position of the waveform relative to time 0.
A. Frequency
B. Phase
C. Phase Shift
D. Frequency

24.In a frequency-domain plot, the horizontal axis measures the ________?
A. peak amplitude
B. frequency
C. phase
D. peak amplitude

25.In a time-domain plot, the horizontal axis is a measure of ________.?
A. signal amplitude
B. frequency
C. phase
D. signal amplitude

26.If the bandwidth of a signal is 5 KHz and the lowest frequency is 52 KHz, what is the highest frequency?
A. 5 KHz
B. 10 KHz
C. 47 KHz
D. 5 KHz

27.What is the bandwidth of a signal that ranges from 1 MHz to 4 MHz?
A. 4 MHz
B. 1 KHz
C. 3 MHz
D. 4 MHz

28.As frequency increases, the period ________.??
A. decreases
B. increases
C. remains the same
D. decreases

29.Given two sine waves A and B, if the frequency of A is twice that of B, then the period of B is ________ that of A.?
A. one-half
B. twice
C. the same as
D. one-half

30.A sine wave is ________.?
A. periodic and continuous
B. aperiodic and continuous
C. periodic and discrete
D. periodic and continuous


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