Your Answer : (Not Answered)

Correct Answer : D

The answer is (A) is false, but (R) is true.

The assertion says printers can produce output only in black and white. That is false: colour printing has been common for decades.

The reason is true. Inkjet printers mix cyan, magenta, yellow and black inks, and colour laser printers use toner in the same four colours, so both produce coloured output.

Since the assertion is false, every option that calls both statements true, or the assertion true, is ruled out.

Your Answer : (Not Answered)

Correct Answer : A

The answer is Both (A) and (R) are true, and (R) is the correct explanation of (A).

Mail merge combines one main document with a data source, such as an address list, to produce many personalised copies. It can produce envelopes and sheets of address labels.

Mail merge is used for labels precisely because part of the content stays the same on every label, such as the return address, while the destination address changes from one label to the next and is filled in from the data source. That is why the Reason explains the Assertion.

Your Answer : (Not Answered)

Correct Answer : B

Teams was developed by Microsoft.

Microsoft Teams, launched in 2017 as part of Microsoft 365, combines chat, video meetings, file storage and sharing, and integration with apps such as Word, Excel and SharePoint in one workspace.

Google's comparable tools are Google Meet and Google Chat; Apple makes FaceTime; and Acrobat is not a company but Adobe's PDF software.

Your Answer : (Not Answered)

Correct Answer : B

Correct answer: MITM

In a man-in-the-middle attack the attacker interposes a server of his own between the two parties and relays their traffic, so each believes it is talking to the other while everything passes through him. The other three are protocols, not attacks.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: Both i and ii

Both statements are true, and for the same reason: a macro virus is written in the macro language of an application, not in machine code. So it infects documents rather than executables, and it runs wherever the application runs, whatever the operating system underneath.

Your Answer : (Not Answered)

Correct Answer : D

Correct answer: 45

A full-duplex line carries both directions, so one line serves each pair of routers:

\[ \binom{10}{2} = \frac{10\times 9}{2} = 45 \]

It would take 90 lines only if each were simplex and a separate one were needed for each direction.

Your Answer : (Not Answered)

Correct Answer : A

Correct answer: Y = A + B + C + D

OR is written with plus signs. The dot form would give AND, and the other two symbols are not Boolean operators.

Your Answer : (Not Answered)

Correct Answer : B

Correct answer: INT

INT is supplied by the language and returns the integer part of its argument, so it is the built-in function here. IF and PRINT are keywords and Num is a variable.

Your Answer : (Not Answered)

Correct Answer : D

Correct answer: slowed by a factor of 2

With the table in memory, each reference needs two accesses: one to read the page table entry and one to reach the datum. The effective access time is therefore doubled, which is precisely why the TLB exists.

Your Answer : (Not Answered)

Correct Answer : D

Correct answer: Value Added Service Provider

A VASP supplies services carried over a telecommunication network beyond plain voice and data - ringtones, messaging platforms, content.

Your Answer : (Not Answered)

Correct Answer : B

Correct answer: To connect and allow communication between all the components of a computer

The motherboard is the main circuit board of a computer. It holds the processor socket, memory slots, expansion slots and the chipset, and it carries the buses along which all the components communicate. Its chipset determines much of what a board can do - which processors it accepts, how much memory and of what type, and how many devices can be attached. It was traditionally divided into a northbridge handling fast connections to memory and graphics, and a southbridge handling slower peripherals, though most of the northbridge function has since moved onto the processor itself. The board also carries the BIOS or UEFI firmware chip and the CMOS battery that preserves its settings. The other options describe different components: storage is the hard disk or SSD, calculation is the CPU, and converting mains alternating current to the low-voltage direct current the components need is the job of the power supply unit.

Your Answer : (Not Answered)

Correct Answer : B

Correct answer: I/O card

A SCSI host adapter is an expansion card that moves data in both directions between the bus and its devices, so as a field replaceable unit it is classed as an I/O card.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: CMOS battery is nearing end of life

The checksum is stored with the CMOS settings and fails when they are corrupted, which happens as the battery loses the charge that maintains them. A new battery and re-entered settings cure it.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: .lnk

.lnk is a Windows shortcut. It holds only a pointer to the real file along with its icon and working directory, so deleting the shortcut leaves the target untouched.

Your Answer : (Not Answered)

Correct Answer : B

Correct answer: parallel clusters

Parallel clusters allow more than one host to access the same data on shared storage at the same time, which needs a special distributed file system to arbitrate the accesses. A Beowulf cluster is a commodity-hardware compute cluster and is not defined by shared data access.

Your Answer : (Not Answered)

Correct Answer : D

Correct answer: Rich Text Format

RTF is Rich Text Format, a document format that carries fonts, sizes and styles in plain readable text, so it can be exchanged between word processors that share nothing else.

Your Answer : (Not Answered)

Correct Answer : D

Correct answer: Mesh

In a mesh every node has a direct bidirectional link to every other, which gives the greatest reliability at the greatest cost in cabling: n nodes need \( n(n-1)/2 \) links.

Your Answer : (Not Answered)

Correct Answer : C

Correct answer: is a mnemonic form of machine language

Assembly language corresponds one instruction to one machine instruction, but writes the operation codes as mnemonics such as MOV and the addresses as symbolic labels, which the assembler translates back to binary. That is why it is described as the mnemonic form of machine language.

Your Answer : (Not Answered)

Correct Answer : A

Correct answer: Round-robin

Round robin is preemptive by definition: a process still running when its time slice expires is interrupted by the timer and moved to the back of the queue. Shortest-job-next and simple priority scheduling let the chosen process run to completion or to a block, so they are not preemptive.

Your Answer : (Not Answered)

Correct Answer : B

Correct answer: Operating System

Linux is an operating system kernel, released by Linus Torvalds in 1991 and distributed with the GNU utilities as Red Hat, Ubuntu, Debian and others. It manages the processor, memory, files and devices, which is exactly what an operating system does.