Practice Test: Question Set - 01
1. Modulation is the process of
- (A) Sending
a file from one computer to another computer
- (B) Converting
digital signals to analog signals
- (C) Converting
analog signals to digital signals
- (D) Echoing
every character that is received
2. What is the name of the computer based EMMS that provides a common forum where users can check in at their convenience, post messages, actively exchange ideas and participate in ongoing discussions?
- (A) E-mail
- (B) Bulletin
board system (BBS)
- (C) Teleconferencing
- (D) Videoconferencing
3. A devices that links two homogeneous packet-broadcast local networks, is
- (A) Hub
- (B) Bridge
- (C) Repeater
- (D) Gateway
4. Operating system functions may include
- (A) Input/output
control
- (B) Virtual
storage
- (C) Multiprogramming
- (D) All
of the above
5. A network designer wants to connect 5 routers as point-to-point simplex line. Then the total number of lines required would be
- (A) 5
- (B) 10
- (C) 20
- (D) 32
6. Distributed Queue Dual Bus is a standard for
- (A) LAN
- (B) MAN
- (C) WAN
- (D) LAN
and MAN
7. A characteristic of a multiprogramming system is:
- (A) Simultaneous
execution of program instructions from two applications
- (B) Concurrent
processing of two or more programs
- (C) Multiple
CPUs
- (D) All
the above
8. Which of the following statement is incorrect?
- (A) Gateways
are assumed to know correct routes; hosts begin with minimal routing
information and learn new routes from gateways.
- (B) Layered
protocols are designed so that layer n at the destination receives exactly the
same object sent by layer n at the source.
- (C) Application
programs as well as all protocol software from the Internet layer upward use
only IP addresses; the network interface layer handles physical addresses.
- (D) All of the
above
9. What is the number of separate protocol layers at the serial interface gateway specified by the X.25 standard?
- (A) 4
- (B) 2
- (C) 6
- (D) 3
10. Which utility is useful for troubleshooting NetBIOS name resolution problems?
- (A) NBTSTAT
- (B) Netstat
- (C) PING
- (D) Hostname
11. In OSI model, which of the following layer provides error-free delivery of data?
- (A) Data
link
- (B) Network
- (C) Transport
- (D) Session
12. The signal to noise ratio for a voice grade line is 30.1 dB (decibels) or a power ratio of 1023:1. The maximum achievable data rate on this line whose spectrum ranges from 300 Hz to 4300 Hz is
- (A) 6200 bps
- (B) 9600 bps
- (C) 34000 bps
- (D) 31000 bps
13. Which of the following is a wrong example of network layer?
- (A) Internet
Protocol (IP) ARPANET
- (B) X.
25 Packet Level Protocol (PLP) - ISO
- (C) Source
routing and Domain naming - Usenet
- (D) X.25 level 2
- ISO
14. What is the name of the device that connects two computers by means of a telephone line?
- (A) Tape
- (B) Modem
- (C) Bus
- (D) Cable
15. You have a network ID of 192.168.10.0 and require at least 25 host IDs for each subnet, with the largest amount of subnets available. Which subnet mask should you assign?
- (A) 255.255.255.192
- (B) 255.255.255.224
- (C) 255.255.255.240
- (D) 255.255.255.248
Next Tests:
Blogger Comment
Facebook Comment