Compiler is related to ?
Answer: A
Correct answer: Programming Language
A compiler reads a program written in a high-level programming language and translates the whole of it into machine code before it is run, reporting any breach of the language’s grammar as it goes. Its subject matter is therefore the programming language, not the operating system, the network or a database.
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Applications are often referred to as ____________
Answer: C
Correct answer: executable files
An application is a program, and a program is delivered as an executable file - one whose contents are machine instructions the operating system can load and run. Data files hold the material such a program works on; system software and the operating system are a different layer altogether.
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What is the primary requisite of a good computer programmer?
Answer: C
Correct answer: Logical mind
Programming is the business of breaking a problem into unambiguous steps and reasoning about what follows from what, so a logical turn of mind matters most. Mathematics and domain knowledge help with particular problems, but the ability to reason through a procedure applies to all of them.
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Computer security can be increased by using ?
Answer: D
Correct answer: All of above
Security is built in layers, and each item is one layer: a password keeps unauthorised people out of the account, an antivirus detects and removes hostile software, and a firewall filters the traffic allowed in and out. Since all three raise security, the combined option is correct.
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A systems programming language for microcomputers in the Intel family is
Answer: C
Correct answer: PL/M
PL/M - Programming Language for Microcomputers - was written by Gary Kildall in 1973 for Intel, and was the first high-level language aimed at microprocessors. CP/M and much of Intel’s own systems software were written in it.
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Find odd one ?
Answer: B
Correct answer: Bug
A Trojan, a virus and a worm are all malicious programs, written deliberately to do harm. A bug is an unintentional mistake in a program - a defect, not an attack - so it is the odd one out.
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Which among following is considered a volatile memory ?
Answer: C
Correct answer: RAM
RAM is volatile: it holds its contents only while power is applied, and everything in it is lost the moment the machine is switched off - which is why work must be saved to disk. ROM, a hard disk and a CD-ROM all retain their contents without power.
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A single packet on a data link is known as
Answer: B
Correct answer: Frame
On a data link the unit that travels on the wire is a frame: the network-layer packet wrapped in a header carrying the hardware addresses of the two ends and a trailer carrying a checksum. The packet is the contents; the frame is the envelope the link layer puts round it.
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In which generation of computers microprocessor was introduced ?
Answer: D
Correct answer: Fourth Generation
The fourth generation began in the early 1970s when a whole processor was put on a single chip - Intel’s 4004 in 1971 - making the microcomputer possible. The first three generations used vacuum tubes, transistors and small-scale integrated circuits respectively.
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In virtual memory systems, Dynamic address translation
Answer: A
Correct answer: is the hardware necessary to implement paging
Dynamic address translation is the hardware - the memory management unit, with its page table and translation lookaside buffer - that converts each virtual address into a physical one as the instruction executes. Without it paging could not work, because every reference would have to be translated in software.
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