Computer set 2 MCQs

Practice interactive objective questions for this topic. Select an option to instantly verify your answer and read detailed explanations.

Showing 525 questions
Q.151 In MS Word, which shortcut inserts a comment?
A Ctrl + Alt + M
B Ctrl + Shift + C
C Ctrl + K
D Alt + F8
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Q.152 In Excel, which chart type uses a line to connect data points in a continuous series?
A Line chart
B Scatter chart
C Bar chart
D Pie chart
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Q.153 What is the keyboard shortcut to lock your computer in Windows?
A Windows + L
B Ctrl + Alt + Del
C Alt + F4
D Windows + D
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Q.154 Which of the following is a characteristic of open-source software?
A Source code is freely available
B It is always free of charge
C It cannot be modified
D It is only available for Linux
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Q.155 In MS Word, what does the 'Ctrl + E' shortcut do?
A Center aligns the paragraph
B Justifies the paragraph
C Left aligns the paragraph
D Right aligns the paragraph
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Q.156 In Excel, what does the function =CONCATENATE(A1," ",B1) do?
A Joins the contents of A1 and B1 with a space between
B Adds the numeric values
C Multiplies A1 and B1
D Compares if they are equal
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Q.157 What is the default port for MySQL database?
A 3306
B 80
C 443
D 21
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Q.158 In cybersecurity, what is a 'phishing email'?
A An email that attempts to trick the recipient into revealing personal information
B An email with a virus attachment
C An email from a known contact
D An email that is encrypted
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Q.159 Which Excel feature helps you visualize data trends by adding small charts to cells?
A Sparklines
B Conditional Formatting
C PivotCharts
D Data Bars
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Q.160 In MS Word, what is a 'soft return' (line break)?
A A line break that starts a new line without starting a new paragraph (Shift+Enter)
B A page break
C A column break
D A section break
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Q.161 In Excel, what does the error '#NUM!' indicate?
A An invalid numeric value in a formula or function
B A division by zero
C A cell reference is not valid
D A value is not available
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Q.162 What is the purpose of 'cloud computing'?
A Delivering computing services over the internet on demand
B Computing using water-cooled systems
C Offline data processing
D Local network storage
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Q.163 In the OSI model, which layer is responsible for routing packets between different networks?
A Network layer
B Data link layer
C Transport layer
D Session layer
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Q.164 What is the main function of the TCP protocol at the transport layer?
A Provide reliable, ordered, and error-checked delivery of data between applications
B Encrypt application data
C Translate domain names to IP addresses
D Assign IP addresses dynamically
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Q.165 Which protocol operates at the data link layer and uses MAC addresses for frame delivery?
A Ethernet
B IP
C TCP
D HTTP
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Q.166 In TCP/IP model, how many layers are there?
A 4
B 5
C 7
D 6
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Q.167 What is the purpose of the ARP protocol?
A Resolve IP addresses to MAC addresses on a local network
B Assign IP addresses dynamically
C Route packets across the internet
D Translate domain names to IP addresses
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Q.168 Which type of DNS record maps a domain name to an IPv4 address?
A A record
B AAAA record
C CNAME record
D MX record
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Q.169 In email infrastructure, what does an MX record specify?
A The mail server responsible for accepting emails for a domain
B The IP address of the web server
C The name server for the domain
D The canonical name alias
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Q.170 Which IPv4 address class is reserved for multicast?
A Class D
B Class A
C Class B
D Class C
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Q.171 What does the subnet mask 255.255.255.0 imply in a Class C network?
A The first three octets identify the network, the last octet identifies the host
B All IP addresses are on the same network
C There are 255 possible subnets
D It's a loopback address
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Q.172 Which IP address range is reserved for private networks according to RFC 1918?
A 192.168.0.0 – 192.168.255.255
B 172.32.0.0 – 172.63.255.255
C 10.0.0.0 – 10.255.255.255
D Both A and C
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Q.173 What is the main advantage of IPv6 over IPv4?
A Larger address space and built-in security features
B Faster internet speed
C Simpler address notation
D Requires less memory on routers
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Q.174 Which networking device operates at Layer 2 of the OSI model and learns MAC addresses to forward frames?
A Switch
B Router
C Hub
D Repeater
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Q.175 What is the primary function of a VLAN?
A Logically segment a physical network into multiple broadcast domains
B Increase the physical speed of the network
C Encrypt all network traffic
D Assign IP addresses automatically
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Q.176 Which wireless security protocol is considered the most secure currently?
A WPA3
B WPA2
C WEP
D WPA
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Q.177 What does NAT (Network Address Translation) accomplish?
A Allows multiple devices on a private network to share a single public IP address
B Boosts Wi-Fi signal strength
C Encrypts data across the internet
D Assigns MAC addresses to devices
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Q.178 In Linux, which command is used to view the current IP configuration?
A ifconfig / ip addr
B ping
C netstat
D traceroute
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Q.179 Which command tests network connectivity and measures round-trip time?
A ping
B traceroute
C nslookup
D netstat
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Q.180 What does the 'traceroute' command identify?
A The path packets take to reach a destination and time taken at each hop
B Available disk space
C MAC address of the default gateway
D DNS resolution errors
Discuss / Board

Master Computer set 2 for All Competitive Exams 2026

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