Operating System Questions

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391.

A translator is best described as

A

an application software

B

a system software

C

a hardware component

D

all of the above

E

None of the above

Correct Answer: B

A translator is best described as a system software

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392.

Data encryption

A

is mostly used by public networks

B

is mostly used by financial networks

C

cannot be used by private installations

D

is not necessary, since data cannot be intercepted

E

None of the above

Correct Answer: B

Data encryption is mostly used by financial networks Data encryption translates data into another form, or code, so that only people with access to a secret key (formally called a decryption key) or password can read it. Encrypted data is commonly referred to as ciphertext, while unencrypted data is called plaintext.

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393.

What is the name given to the process of initializing a microcomputer with its operating system?

A

Cold booting

B

Booting

C

Warm booting

D

Boot recording

E

None of the above

Correct Answer: B

None.

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394.

The function(s) of the Storage Assignment is (are)

A

to assign storage to all variables referenced in the source program.

B

to assign storage to all temporary locations that are necessary for intermediate results.

C

to assign storage to literals, and to ensure that the storage is allocate and appropriate locations are initialized.

D

all of the above

E

None of the above

Correct Answer: D

None.

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395.

A Processor

A

is a device that performs a sequence of operations specified by instructions in memory.

B

is the device where information is stored

C

is a sequence of instructions

D

is typically characterized by interactive processing and time of the CPU

E

None of the above

Correct Answer: A

A Processor is a device that performs a sequence of operations specified by instructions in memory.

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396.

With MS-DOS which command will divide the surface of the blank floppy disk into sectors and assign a unique address to each one?

A

FORMAT command

B

FAT command

C

VER command

D

CHKDSK command

E

None of the above

Correct Answer: A

None.

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397.

Multiprogramming

A

is a method of memory allocation by which the program is subdivided into equal portions, or pages and core is subdivided into equal portions or blocks.

B

consists of those addresses that may be generated by a processor during execution of a computation.

C

is a method of allocating processor time.

D

allows multiple programs to reside in separate areas of core at the time.

E

None of the above

Correct Answer: D

Multiprogramming allows multiple programs to reside in separate areas of core at the time.

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398.

Addressing modes

A

defines the fundamental method of determining effective operand addresses

B

are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing.

C

performs indicated operations on two fast registers of the machine and leave the result in one of the registers.

D

all of the above

E

None of the above

Correct Answer: B

Addressing modes are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing.

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399.

Which of the following is a type of systems software used on microcomputers?

A

MS-DOS

B

PC-DOS

C

Unix

D

All of the above

E

None of the above

Correct Answer: D

None.

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400.

The working set theory of programming behaviour of processes running within an operating system involves

A

the collection of pages that a process accesses

B

disk scheduling mechanisms

C

coalescing holes in memory

D

assigning the CPU to processes

E

None of the above

Correct Answer: A

The working set theory of programming behaviour of processes running within an operating system involves the collection of pages that a process accesses

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