NETWORKING MCQS

A modem (modulator-demodulator) connects to a telephone line to convert digital signals into analog for transmission and vice versa, enabling internet access.

A scanner is a light-sensitive input device that converts physical documents, drawings, or images into digital data for computer processing and storage.

The Melissa virus, widely publicized in 1999, was primarily an e-mail virus that spread rapidly by attaching itself to Microsoft Word documents.

A hybrid computer combines features of both analog and digital computers, processing both continuous analog signals and discrete digital data efficiently.

Computer crime is precisely defined as any illegal activity or offense that is committed or facilitated through the use of computer technology.

Alt+Ctrl+S is the correct shortcut key in MS Word used to either split a window or remove an existing split view.

An embedded organization chart object can be edited by right-clicking it and selecting "Edit Object" or by simply double-clicking the object.

Mail Merge is the specific function used to personalize letters by adding unique names and addresses for different recipients efficiently.

The first page of a website that users typically see when they navigate to a web address is universally termed the Homepage.

Shift + Delete is the shortcut key combination used to permanently delete files or data, bypassing the Recycle Bin or Trash.

In spreadsheet applications, a cell range from A3 through G3 is correctly represented using a colon, specifically keyed in as A3:G3.

CTRL+F10 is the keyboard shortcut commonly used in Windows to maximize or restore a selected window to its previous size.

User-developed instructions or automated sequences of commands in Excel are specifically known as Macros, simplifying repetitive tasks.

The correct answer is AVI.

In computer science and multimedia analytics, evaluating streaming technologies requires analyzing data types and container properties. The question asks for a format capable of transmitting streaming video data. Among the choices provided, AVI (Audio Video Interleave) is the only multimedia container format engineered to store both video and audio streams simultaneously. Developed by Microsoft, AVI structures files so that audio and video data segments alternate sequentially, allowing media players to decode and sync multimedia components dynamically during web playback or progressive downloads.

The alternative distractor options fail to satisfy the core requirement because they are strictly limited to audio architectures. For example, MP3 (MPEG-1 Audio Layer III) is a lossy compression format designed exclusively for acoustic data. Similarly, WMA (Windows Media Audio) and WAV (Waveform Audio File Format) are dedicated digital audio formats developed for sound reproduction and storage. None of these three options possess the technical capacity to encapsulate or transmit structural video frames. Therefore, AVI is the only logically viable option that satisfies the criteria of the prompt.

Mbps (Megabits per second) is the standard unit of measurement used to quantify the speed of an internet connection, representing data transfer rate.

Underlining is a text formatting option directly accessible via a dedicated button on most standard formatting toolbars in word processing software.

The "Edit" option is not typically associated with a spelling dialogue box, which primarily offers ignore, change, or add options for corrections.

The "Custom Slide Show" option enables users to select specific slides and arrange them in a unique order for a tailored presentation.

The kernel is the fundamental core of an operating system, responsible for managing system resources and facilitating communication between hardware and software.

In Ms PowerPoint, the "Format, Replace Fonts" option allows users to efficiently change a specific font across all slides simultaneously.

"Narrow" is a specific preset option for page margins, defining the amount of white space around the content on a document page.

Sans serif fonts are ideal for titles and headlines in Ms PowerPoint due to their clean lines, which enhance readability and visual impact.

Routers primarily operate at Layer 3, the Network Layer, of the OSI model, handling logical addressing and routing data packets between different networks.

VAB is an acronym that precisely stands for "Voice Answer Back," referring to systems capable of providing audio responses.

Multi-user systems save costs by linking several inexpensive dumb terminals to a single powerful processing unit, sharing resources efficiently.