Computer — All MCQs

4795 questions available

Showing 4701–4720 of 4795

Q4701.Which of the following is NOT classified as a Database Management System (DBMS)?

Easy
A MySQL
B Microsoft Access
C IBM DB2
D Google
Computer Terminology PPSC

Correct Answer: D

Google is a web search engine and multinational technology firm, whereas MySQL, MS Access, and DB2 are relational database management systems.

Q4702.How many types of quantification are formally available in the study of Predicate Logic within Artificial Intelligence?

Easy
A 4
B 2
C 1
D 3
Computer Terminology PPSC

Correct Answer: B

Predicate logic utilizes exactly two quantifiers: the Universal quantifier (denoting 'for all') and the Existential quantifier (denoting 'there exists').

Q4703.Using the English alphabet from A to Z to designate storage drives, what is the maximum number of disk drives MS-DOS can address?

Easy
A 40
B 26
C 18
D 16
Computer Basics PPSC

Correct Answer: B

Since MS-DOS assigns single-letter designations from A to Z, it can address and recognize a maximum of 26 unique disk drives.

Q4704.In graph theory, what does the term 'chromatic number' of a graph represent?

Easy
A The minimum number of colors required for a proper edge coloring of the graph
B The maximum number of colors required for a proper vertex coloring of the graph
C The minimum number of colors required for a proper vertex coloring of the graph
D The minimum number of colors required for a proper edge mapping of the graph
Computer Basics PPSC

Correct Answer: C

The chromatic number is the minimum number of colors needed to color the vertices of a graph such that no two adjacent vertices share the exact same color.

Q4705.What term refers to a specialized subset of a data warehouse focused on a single business department or functional area?

Easy
A Data mart
B Association rules
C Flat files
D Database
Computer Terminology PPSC

Correct Answer: A

A Data Mart is a focused, departmental-level slice of a larger data warehouse designed to support a specific line of business (like marketing or sales).

Q4706.Every time a computer boots under MS-DOS, it checks which of the following set of system control files?

Easy
A Command.com, io.sys
B Command.com, date.com, dir.com
C Chkdsk.exe, autoexec.bat
D Command.com, io.sys, msdos.sys
General MCQs PPSC

Correct Answer: D

The three core system files required for an MS-DOS boot sequence are the command interpreter (command.com), the I/O handler (io.sys), and the system kernel (msdos.sys).

Q4707.What rule defines a proper vertex coloring of a graph in computer science?

Easy
A Any two vertices sharing a common edge must NOT have the same color
B Any two vertices sharing a common edge must ALWAYS have the same color
C Every vertex in the graph must have a completely unique and different color
D All vertices in the graph must be colored using a single uniform color
General MCQs PPSC

Correct Answer: A

A proper vertex coloring requires that no two adjacent vertices (connected by an edge) are assigned the same color.

Q4708.The UNIX shell is characterized as which of the following languages?

Easy
A Scripting and interpreted language
B High-level and low-level language
C Interactive and responsive language
D Interpreted and executing language
Computer Networks PPSC

Correct Answer: A

A Unix shell is an interpreted command-line interface that also functions as a powerful scripting language to automate complex pipelines.

Q4709.What is the time complexity of the pre-processing phase of the Rabin-Karp pattern-matching algorithm, where 'm' is pattern length?

Easy
A Theta(m^2)
B Theta(m * log n)
C Theta(m)
D Big-Oh(n)
Computer Terminology PPSC

Correct Answer: C

The Rabin-Karp pre-processing algorithm computes the initial hash of the pattern, taking Theta(m) time relative to the pattern's length.

Q4710.We can simulate a non-deterministic Turing machine using a deterministic Turing machine without requiring extra ______?

Easy
A Time
B Space
C Both time and space
D None of the above
General MCQs PPSC

Correct Answer: B

Savitch's theorem implies that a deterministic Turing machine can simulate non-deterministic machines, but doing so without extra space often increases execution time exponentially.

Q4711.What are the fundamental binary elements that make up a computer's machine language program?

Easy
A Statements
B Directives
C Injunctions
D Instructions
Computer Terminology PPSC

Correct Answer: D

Machine language programs are composed of raw binary instructions (consisting of opcodes and operands) that the CPU executes directly.

Q4712.What term defines the logical or physical endpoint of an inter-process communication (IPC) flow across a computer network?

Easy
A Port
B Socket
C Machine
D Pipe
Computer Networks PPSC

Correct Answer: B

A socket is an endpoint in network communication defined by an IP address and a port number, enabling bidirectional data flow.

Q4713.What type of control is utilized within a SCADA (Supervisory Control and Data Acquisition) system architecture?

Easy
A Online control
B Direct control
C Supervisory control
D Automatic control
General MCQs PPSC

Correct Answer: C

SCADA systems are designed for high-level supervisory control over distributed industrial systems and automated machinery.

Q4714.In Microsoft Excel, what is the evaluated result of the mathematical formula '=5 + 2 * 3'?

Easy
A 1
B 10
C 11
D 21
MS Excel PPSC

Correct Answer: C

According to mathematical operator precedence (PEMDAS), the multiplication '2 * 3 = 6' is executed first, followed by the addition '5 + 6 = 11'.

Q4715.What test was originally named and conceptualized by Alan Turing in 1950 as the 'imitation game'?

Easy
A The Turing Test
B LISP
C The Logic Theorist
D Cybernetics
Computer Networks PPSC

Correct Answer: A

Alan Turing's 1950 paper 'Computing Machinery and Intelligence' introduced the imitation game, which is now globally known as the Turing Test.

Q4716.Which network topology is characterized by connecting every node directly to a single central hub or switch?

Easy
A Bus Network Topology
B Star Network Topology
C Ring Network Topology
D None of these
Computer Networks PPSC

Correct Answer: B

In a Star topology, all network nodes connect to a central hub, making it easy to troubleshoot but dependent on the central device.

Q4717.Which layer of the TCP/IP suite is functionally equivalent to the Transport Layer of the OSI reference model?

Easy
A Application
B Host-to-Host
C Internet
D Network Access
Computer Networks PPSC

Correct Answer: B

The Host-to-Host layer (such as TCP/UDP) handles end-to-end communication and corresponds directly to the Transport Layer of the OSI model.

Q4718.Which of the following statements is/are correct regarding cloud computing deployments on AWS?

Easy
A Security can be configured via passwords, Kerberos tickets, or certificates
B Secure access to EC2 AMIs can be controlled via passwords, Kerberos, and X.509 certificates
C Most of the pre-made system image templates offered by Amazon AWS are based on Red Hat Linux
D All of the above statements are correct
Computer Terminology PPSC

Correct Answer: D

All listed statements are accurate regarding Amazon Web Services' security models, access controls, and RHEL template environments.

Q4719.In MySQL database administration, which command option is used to enable the binary log index file?

Easy
A –log-bin-index
B –bin-log-index
C –index-log-bin
D –index-bin-log
Computer Terminology PPSC

Correct Answer: A

The MySQL startup parameter '--log-bin-index' is used to specify the file name and path for the binary log index file.

Q4720.Google Language Translator is a classic, widely used application of which computer science discipline?

Easy
A Internet Protocols
B Software Debugging
C Computer simulations
D Machine learning
Computer Terminology PPSC

Correct Answer: D

Google Translate uses advanced deep machine learning and natural language processing (NLP) models to translate text across languages.