21. What is shell ?
(a) It is hardware component.
(b) It is a part of compiler.
(c) It is a tool in CPU scheduling.
(d) It is a command interpreter.
22. Which of the following is most likely to use an embedded OS ?
(a) Computerized life-support system
(b) Macintosh computer
(c) Desktop PC
(d) None of the above
23. In a GUI, the window that is currently in use is called as
(a) Top window
(b) Active window
(c) Framed window
(d) None of the above
24. Multiprogramming is
(a) writing two or more programs at a time.
(b) using more than two programs to solve a problem.
(c) processing of two or more programs at the same time.
(d) None of the above
25. An assembler in computer is a
(a) Program
(b) Language
(C) Hardware
(d) Person
26. Unix and its software are written in high level language
(a) C
(b) PL/1
(c) Ada
(d) None of these
27. The operating system manages
(a) Memory
(b) Processor
(c) Disk and I/O devices
(d) All of the above
28. Cryptographic technique is used in
(a) Pooling
(b) Job scheduling
(c) Protection
(d) File management
29. Modulation is the process of
(a) sending a file from one computer to another.
(b) converting digital signal to analog signal.
(c) converting analog signal to digital signal.
(d) echoing every character that is received.
30. FDDI is a
(a) Ring Network
(b) Star Network
(c) Mess Network
(d) Bus Based Network
31. Junk E-mail is also called
(a) Spam
(b) Spoof
(C) Sniffer script
(d) Spool
32. Data transfer rate in modems is measured in
(a) Bits per minute
(b) Bits per second
(c) Bandwidth
(d) None of the above
33. Which of the following wired transmission media is the fastest ?
(a) Twisted pair
(b) Coaxial cable
(C) Optical fiber
(d) None of the above
34. When data is sent during set time periods, what do you call the transmission mode ?
(a) Synchronous
(b) Asynchronous
(c) Protocol
(d) None of the above
35. Which of the following networking solution is suitable for networking within a building ?
(a) WAN
(b) LAN
(c) MAN
(d) None of these
36. IRC stands for
(a) Internet Real Time Communication
(b) Internet Relay Chat
(c) Internet Real-Time Chat
(d) None of the above
37. Devices on one network can communicate with devices on another network via a
(a) File Server
(b) Utility Server
(c) Printer Server
(d) Gateway
38. CSMA/CD
(a) is a protocol
(b) is used in IEEE 802.3 (Ethernet)
(c) both (a) and (b)
(d) None of the above
39. With electronic mail you can do which of the following:
(a) send and read mail
(b) delete, reply to, or forward
(c) delete someone else’s mail
(d) both (a) and (b)
40. Which service is used on internet to exchange files ?
(a) Telnet
(b) Gopher
(c) FTP
(d) SP
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