Computer — All MCQs
4795 questions available
Q2481.Which of the following can be used as a watermark in an MS Word document?
Correct Answer: C
Word supports adding faint text (like 'DRAFT') or faint images (like a company logo) behind the main content as watermarks.
Q2482.Which of the following is NOT an essential component required to perform a Mail Merge operation?
Correct Answer: A
While the template (Main Document), recipient list (Data Source), and placeholders (Merge Fields) are absolutely required, standard Word fields are optional.
Q2483.Which of the following Excel expressions will give a resulting value of 6?
Correct Answer: A
Following standard operator precedence (PEMDAS), `=6*6/6` evaluates to `36/6 = 6`.
Q2484.What is the primary function of a URL (Uniform Resource Locator)?
Correct Answer: A
A URL acts as a unique web address that identifies and locates a specific resource (webpage, file, image) on the Internet.
Q2485.Which protocol is commonly used for sending electronic mail (emails) over the internet?
Correct Answer: B
SMTP (Simple Mail Transfer Protocol) is the standard protocol used for transmitting emails between email servers.
Q2486.Increasing which component will MOST directly improve performance when multiple application programs are running simultaneously?
Correct Answer: C
RAM (Random Access Memory) holds active programs and data. More RAM allows more programs to run simultaneously without system slowdown.
Q2487.Which device connects two or more networks that use different, incompatible protocols?
Correct Answer: A
A Gateway acts as an entrance and translator between different networks utilizing different architectures or communication protocols.
Q2488.What is the function of the F4 key in most Microsoft Office applications (Word, Excel, etc.)?
Correct Answer: C
Pressing F4 in MS Word or Excel repeats your most recent action, such as formatting, typing, or deleting.
Q2489.Network bandwidth is usually measured in _____?
Correct Answer: B
Bandwidth represents the data transmission speed of a network, measured in bits per second (bps) or its multiples (Mbps, Gbps).
Q2490.In a network with 25 computers, which topology would require the most extensive cabling?
Correct Answer: B
A full Mesh Topology requires n(n-1)/2 connections. For 25 computers, it requires 25*24/2 = 300 cables, making it highly cable-intensive.
Q2491.Which of the following is considered an example of a Wide Area Network (WAN)?
Correct Answer: B
Mobile broadband networks (like 3G, 4G, 5G) span across countries or continents, representing common examples of WANs.
Q2492.What does RAID stand for in computer data storage technologies?
Correct Answer: C
RAID stands for Redundant Array of Inexpensive (or Independent) Disks, a technology that combines multiple physical drives for redundancy or speed.
Q2493.What is the second step involved in creating a macro in MS Excel?
Correct Answer: B
The standard sequence of creating a macro is: 1) Access Tools/Developer, 2) Record the Macro actions, 3) Test/Run the macro, and 4) Save it.
Q2494.ICMP belongs to which layer of the OSI model?
Correct Answer: B
ICMP (Internet Control Message Protocol) is a Network Layer protocol used for diagnostics (like ping) and error reporting.
Q2495.Which of the following is NOT a layer in the 7-layer OSI model?
Correct Answer: C
The 7 layers are Physical, Data Link, Network, Transport, Session, Presentation, and Application. 'Process' is not an OSI layer.
Q2496.Which type of cryptography utilizes one public key and one private key?
Correct Answer: B
Asymmetric (Public Key) Cryptography uses a public key (to encrypt) and a matching private key (to decrypt).
Q2497.What is a DoS Attack in cybersecurity?
Correct Answer: A
A Denial of Service (DoS) attack occurs when an attacker floods a system or network with traffic to deny access to legitimate users.
Q2498.In which network communication task is ICMP primarily used?
Correct Answer: C
ICMP (Internet Control Message Protocol) is used primarily for control, testing, diagnostics (like ping), and reporting delivery errors.
Q2499.MTU in computer networking stands for?
Correct Answer: B
MTU stands for Maximum Transmission Unit, representing the largest physical packet size (in bytes) that can be sent over a network medium.
Q2500.What is the default TCP port number used for standard, non-secure HTTP web traffic?
Correct Answer: C
Standard HTTP uses TCP port 80 by default. Secure HTTPS uses port 443.