1. Which multiplexing technique involves signals composed of light beams?
FDM
TDM
GDM
WDM
None of the above
2. _____ cable can carry signals of higher frequency ranges than _____ cable.
Coaxial; twisted-pair
Coaxial; fiber-optic
Twisted-pair; fiber-optic
none of the above
3. Which of the following field of the TCP header tells how many bytes may be sent starting at the byte acknowledged ?
Window size
TCP header length
Acknowledgement number
Urgent pointer
None of the above
4. Which of these is not an advantage of Optical fibers
Immune to electromagnetic interference
Less signal attenuation
greater immunity to tapping
easy installation and maintenance
None of these
5. The WWW today is a _______ client-server service, in which a client using a browser can access a service using a server.
limited
distributed
vast
All of these
None of the above
6. which of the following is not a field in the Ethernet Message packet?
Pin-code
type
data
Address
None of the above
7. Telnet is ________ protocol.
application layer
Network Layer
Transport layer
Session layer
None of the above
8. Compression is part of
Presentation layer
application layer
Network Layer
Session layer
None of these
9. Select the wrong data communication system component:
Medium
Protocol
Receiver
Transits
None of these
10. An HTTP request message always contains _______.
a header and a body
header
a status line, a header, and a body
a request line and a header
None of these
Answers:
- 4
- 1
- 1
- 4
- 2
- 1
- 1
- 1
- 4
- 4
