Join Us ::

Menu Home Classes GK Engineering Past Papers Current Affairs Technical GAT Subject Programming Medical Papers

Networking :: All Aptitude Test ::

Home » Technical » Networking » Aptitude Test - 8
1.If the maximum amplitude of a sine wave is 2 V, the minimum amplitude is ________ V.?
A. 2
B. 1
C. -2
D. 2
2.A signal is measured at two different points. The power is P1 at the first point and P2 at the second point. The dB is 0. This means ________.?
A. P2 is zero
B. P2 equals P1
C. P2 is much larger than P1
D. P2 is zero
3.________ is a type of transmission impairment in which the signal loses strength due to the resistance of the transmission medium.?
A. Attenuation
B. Distortion
C. Noise
D. Attenuation
4.________ is a type of transmission impairment in which the signal loses strength due to the different propagation speeds of each frequency that makes up the signal.?
A. Attenuation
B. Distortion
C. Noise
D. Attenuation
5.________ is a type of transmission impairment in which an outside source such as crosstalk corrupts a signal.?
A. Attenuation
B. Distortion
C. Noise
D. Attenuation
6.When propagation speed is multiplied by propagation time, we get the ________.?
A. throughput
B. wavelength of the signal
C. distortion factor
D. throughput
7.Data can be ________.?
A. analog
B. digital
C. (a) or (b)
D. analog
8._______ data have discrete states and take discrete values.?
A. Analog
B. Digital
C. (a) or (b)
D. Analog
9._____ signals can have an infinite number of values in a range.?
A. Analog
B. Digital
C. (a) or (b)
D. Analog
10.Which of the following would be found in a Data Link layer header?
A. The packet’s fragmentation offset
B. The source’s logical address
C. The packet’s sequence number
D. The packet’s fragmentation offset
11.What is a primary function of the trailer information added by the data link layer encapsulation?
A. Supports error detection
B. Ensures ordered arrival of data
C. Identifies the devices on the local network
D. Supports error detection
12.Error detection at the data link layer is achieved by?
A. Bit stuffing
B. Cyclic redundancy codes
C. Hamming codes
D. Bit stuffing
13.Which of the following devices is a PC component that connects the computer to the network?
A. Bridge
B. NIC (Network Interface Card)
C. DNS Server
D. Bridge
14.Switch is a Device of _________ Layer of OSI Model.?
A. Network Layer
B. Data Link Layer
C. Application Layer
D. Network Layer
15.HUB is a _________ Device and Switch is a ________ Device.?
A. Unicast, Multicast
B. Malticast, Unicast
C. Broadcast, Unicast
D. Unicast, Multicast
16.Which one of the following task is not done by data link layer?
A. framing
B. error control
C. flow control
D. framing
17.Which sublayer of the data link layer performs data link functions that depend upon the type of medium?
A. logical link control sublayer
B. media access control sub-layer
C. network interface control sublayer
D. logical link control sublayer
18.Header of a frame generally contains?
A. synchronization bytes
B. addresses
C. frame identifier
D. synchronization bytes
19.Automatic repeat request error management mechanism is provided by?
A. logical link control sublayer
B. media access control sublayer
C. network interface control sublayer
D. logical link control sublayer
20.When 2 or more bits in a data unit has been changed during the transmission, the error is called?
A. random error
B. burst error
C. inverted error
D. random error
21.Which one of the following is the multiple access protocol for channel access control?
A. CSMA/CD
B. CSMA/CA
C. both (a) and (b)
D. CSMA/CD
22.The technique of temporarily delaying outgoing outgoing acknowledgements so that they can be hooked onto the next outgoing data frame is called?
A. piggybacking
B. cyclic redundancy check
C. fletcher’s checksum
D. piggybacking
23.How the error detection is achieved at data link layer?
A. Hamming codes
B. Bit stuffing
C. Detection manager
D. Hamming codes
24.The technique of temporarily delaying outgoing outgoing acknowledgements so that they can be hooked onto the next outgoing data frame is called?
A. piggybacking
B. cyclic redundancy check
C. fletcher’s checksum
D. piggybacking
25.Switch operates at second layer of OSI model that is _______layer.?
A. Physical layer
B. Network layer
C. Data link layer
D. Physical layer
26.Bridge works in which layer of the OSI model?
A. Application layer
B. Transport layer
C. Network layer
D. Application layer
27.MAC Address is used by which layer ?
A. Transport Layer
B. Data Link Layer
C. Application Layer
D. Transport Layer
28.Layer-2 Switch is also called?
A. Multiport Bridge
B. Multiport Hub
C. Multiport Switch
D. Multiport Bridge
29.____________ is added to data packet for error detection.?
A. checksum bit
B. error bit
C. parity bit
D. checksum bit
30.Which error detection method uses one's complement arithmetic?
A. Simple parity check
B. Two-dimensional parity check
C. CRC
D. Simple parity check
Related Subjects

Date to Date Current Affairs 2022

PakMCQs.net

Quick Links

GAT Subject



   Computer Science    English Mcqs    Agriculture    

Engineering



   Computer Science    Civil Engineering    

Technical



   Networking    Electronics    Database    

Past Papers



   Model Papers    FPSC Papers    
Our Team | Career | Contact | JoinUs | Privacy Policy | DMC

© 2020-2024 by Pak-MCQs.net All Rights Reserved.

Email: [email protected]