Toggle navigation
Terms & Conditions
Contact
Home
GK
Computer
TRB
TNPSC
Aptitude
English
Reasoning
Technical
Bank Exams
SSC
Engineering
Puzzles
Interview
GD Topics
Blogs
Online Test
Free computer quiz Online Test - MeritNotes
Home
Online Exam
No. of Questions :10
Remaining Time :
1. Which multiplexing technique transmits analog signals?
(a)
Synchronous TDM
(b)
Asynchronous TDM
(c)
Frequency Division Multiplexing
(d)
Both a and b
2. Error detecting code is
(a)
The ratio of the data units in error to the total number of data units
(b)
A code in which each expression conforms to specify rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and thus the presence of the error is detected
(c)
A check bit appended to an array of binary digits to make the sum of all the binary digits
(d)
An error detecting code based on a summation operation performed on the bits to be checked
3. Error rate is
(a)
The ratio of the number of data units in error to the total number of data units
(b)
A code in which each expression conforms to specific rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and thus the presence of the errors is detected
(c)
A check bit appended to an array of binary digits to make the sum of all the binary digits
(d)
An error detecting code based on a summation operation performed on the bits to be checked
4. Which of the following divides the high speed signal into frequency bands?
(a)
Time division multiplexer
(b)
Frequency division multiplexer
(c)
Modem
(d)
T-switch
5. Modulation is the process of
(a)
Converting analog signals to digital signals
(b)
Converting digital signals to analog signals
(c)
Sending a file from one computer to another computer
(d)
Echoing every character that is received
6. Which of the following communications lines is best suited to interactive processing applications?
(a)
Mixed band channels
(b)
Full duplex lines
(c)
Simplex lines
(d)
Narrowband channels
7. Which of the following statement is correct?
(a)
Buffering is storage of data within the transmitting medium until the receiver is ready to receiver
(b)
Buffering is a method to reduce the routing overhead
(c)
Buffering is a method to reduce cross-talks
(d)
Buffering is the process of temporarily storing the data to allow for small variation in device speeds
8. A front end processor is
(a)
Preliminary processor of batch jobs
(b)
A minicomputer that relieves mainframe computers at a computer centre communications control functions
(c)
A processor in a large scale computer that executes operating system instructions
(d)
A user computer system
9. What protocol is used between E-Mail servers?
(a)
SMTP - Simple Mail Transfer Protocol
(b)
SNMP
(c)
File Transfer Protocol
(d)
POP3
10. The physical layer of a network
(a)
Construction packets of data and sends them across the network
(b)
Controls error detection and correction
(c)
Defines the electrical characteristics of signals passed between the computer and communication devices
(d)
All of the above
