81. Question:_____ command provides an overview of the current resource usage of the system, including CPU, RAM, and swap space.
Option 1: top
Option 2: ps
Option 3: ls
Option 4: sysstat
Correct Answer: 1
Explanation: The top command provides an overview of the current resource usage of the system, including CPU, RAM, and swap space. It offers real-time monitoring of processes and their resource consumption.
82. Question: Which command in Linux is primarily used to view the routing table?
Option 1: route
Option 2: netstat
Option 3: ifconfig
Option 4: ping
Correct Answer: 1
Explanation: The route command is primarily used to view the routing table in Linux. The routing table contains information about how network packets are forwarded through the network. It displays the target networks and their associated gateways or interfaces.
83. Question: What does the ifconfig command primarily display?
Option 1: Network interface information
Option 2: System uptime
Option 3: List of installed packages
Option 4: CPU usage statistics
Correct Answer: 1
Explanation: The ifconfig command is primarily used to display network interface information. It shows detailed information about all network interfaces on the system, such as IP addresses, MAC addresses, and network configuration settings. This command is an important tool for managing and configuring network interfaces in Linux.
84. Question: What service in Linux is responsible for resolving domain names to IP addresses?
Option 1: DNS (Domain Name System)
Option 2: DHCP (Dynamic Host Configuration Protocol)
Option 3: SNMP (Simple Network Management Protocol)
Option 4: SMTP (Simple Mail Transfer Protocol)
Correct Answer: 1
Explanation: The service responsible for resolving domain names to IP addresses in Linux is DNS (Domain Name System). DNS servers maintain a database of mappings from domain names to IP addresses, helping translate human-readable domain names into numerical IP addresses for network communication.
85. Question: Which daemon in Linux is responsible for network interface configuration and automatic network switching?
Option 1: NetworkManager
Option 2: SystemD
Option 3: ifconfig
Option 4: Apache
Correct Answer: 1
Explanation: NetworkManager is responsible for network interface configuration and automatic network switching in Linux. It simplifies network setup and management, allowing users to seamlessly connect to different networks.