Q226. Which protocol is used for automating network configuration tasks?
A) SNMP
B) SSH
C) NETCONF
D) FTP
✅ Correct Answer: C

Q227. Which scripting language is commonly used for network automation?
A) Python
B) JavaScript
C) Ruby
D) Perl
✅ Correct Answer: A

Q228. Ansible is used for:
A) Network performance monitoring
B) Network configuration management
C) Traffic analysis
D) Network traffic encryption
✅ Correct Answer: B

Q229. What does the term “Infrastructure as Code” (IaC) mean in the context of network automation?
A) Hardware provisioning via scripts
B) Network devices running code-based software
C) Automating physical cabling
D) Managing network devices using code
✅ Correct Answer: D

Q230. Which of these is a popular network automation tool?
A) Wireshark
B) Terraform
C) Wi-Fi Analyzer
D) Cisco Packet Tracer
✅ Correct Answer: B

Q231. Which protocol is commonly used for network monitoring and management?
A) HTTP
B) SNMP
C) FTP
D) TFTP
✅ Correct Answer: B

Q232. Which version of SNMP introduced improved security features?
A) SNMPv1
B) SNMPv2c
C) SNMPv3
D) SNMPv4
✅ Correct Answer: C

Q233. What does the “show interfaces” command display on a Cisco router?
A) Routing table
B) Device configuration
C) Interface status and statistics
D) Running processes
✅ Correct Answer: C

Q234. Which command is used to display the ARP table on a router?
A) show ip arp
B) show ip route
C) show arp
D) show interfaces
✅ Correct Answer: A

Q235. What is the function of the command “ping” in network troubleshooting?
A) Displays routing information
B) Tests network device connectivity
C) Encrypts data for secure transmission
D) Configures the firewall
✅ Correct Answer: B

Q236. What is the default port for the HTTP protocol?
A) 21
B) 80
C) 443
D) 23
✅ Correct Answer: B

Q237. The term “latency” in network performance refers to:
A) Packet loss
B) Network congestion
C) Delay in data transmission
D) Bandwidth usage
✅ Correct Answer: C

Q238. What is the purpose of a network load balancer?
A) To optimize network throughput
B) To assign IP addresses dynamically
C) To distribute traffic across multiple servers
D) To block unauthorized traffic
✅ Correct Answer: C

Q239. Which tool is used to measure network bandwidth?
A) NetFlow
B) Ping
C) iperf
D) Wireshark
✅ Correct Answer: C

Q240. The primary function of a syslog server is to:
A) Monitor traffic patterns
B) Store network device logs
C) Control network access
D) Analyze packet contents
✅ Correct Answer: B

Q241. What type of device is a network probe typically used for?
A) Routing
B) Security monitoring
C) Network analysis
D) Traffic shaping
✅ Correct Answer: C

Q242. Which of the following is a tool for automating network tests and deployments?
A) Ansible
B) SolarWinds
C) NetFlow
D) Wireshark
✅ Correct Answer: A

Q243. The “show ip route” command on a Cisco router is used to:
A) Display routing table
B) Display interface configuration
C) Display ARP table
D) Display network performance metrics
✅ Correct Answer: A

Q244. In network monitoring, “NetFlow” is used to:
A) Encrypt network traffic
B) Monitor and analyze traffic flows
C) Automate configuration
D) Generate firewall rules
✅ Correct Answer: B

Q245. Which of these is an example of a network performance metric?
A) MTU
B) Round-trip time
C) DNS resolution
D) IP address
✅ Correct Answer: B

Q246. What is the purpose of the “traceroute” command?
A) Display the routing table
B) Identify device IP addresses
C) Trace the path data takes to reach a destination
D) Configure router interfaces
✅ Correct Answer: C

Q247. Which network automation tool is used for configuration management?
A) Ansible
B) GNS3
C) Wireshark
D) BGP
✅ Correct Answer: A

Q248. Which command is used to test connectivity to an IP address from a computer?
A) telnet
B) traceroute
C) ping
D) nslookup
✅ Correct Answer: C

Q249. In network automation, which of these tools is known for automating cloud infrastructure?
A) Wireshark
B) Terraform
C) GNS3
D) Nagios
✅ Correct Answer: B

Q250. Which of the following is commonly used to simulate network traffic for performance testing?
A) iperf
B) nmap
C) SSH
D) tcpdump
✅ Correct Answer: A

Q251. Which of the following tools is used for analyzing network traffic?
A) Wireshark
B) NetFlow
C) SolarWinds
D) NTP
✅ Correct Answer: A

Q252. What does the “netstat” command display on a networked device?
A) IP address configuration
B) Network statistics
C) Network device logs
D) Active network connections
✅ Correct Answer: D

Q253. In the OSI model, which layer is responsible for routing packets between networks?
A) Data Link
B) Network
C) Transport
D) Application
✅ Correct Answer: B

Q254. Which protocol is primarily used for DNS resolution?
A) SMTP
B) ICMP
C) DNS
D) FTP
✅ Correct Answer: C

Q255. Which tool would you use to measure the round-trip time of packets to a remote host?
A) traceroute
B) ping
C) nslookup
D) iperf
✅ Correct Answer: B

Q256. The “ARP” protocol is used to:
A) Convert domain names to IP addresses
B) Resolve IP addresses to MAC addresses
C) Provide secure communications over IP
D) Determine route hops
✅ Correct Answer: B

Q257. Which command is used to test connectivity between a source and destination by analyzing intermediate hops?
A) ping
B) traceroute
C) nslookup
D) arp
✅ Correct Answer: B

Q258. What is the purpose of a “default gateway” in networking?
A) To provide a route to the local network
B) To route traffic to external networks
C) To filter inbound traffic
D) To provide dynamic IP addressing
✅ Correct Answer: B

Q259. Which tool is used for visualizing the path of packets over a network?
A) ping
B) traceroute
C) iperf
D) tcpdump
✅ Correct Answer: B

Q260. A high “ping” time could indicate which of the following?
A) Network congestion
B) Unused network bandwidth
C) Low-quality network cables
D) Low CPU usage
✅ Correct Answer: A

Q261. What is the primary use of “tcpdump” in network analysis?
A) Simulate traffic
B) Encrypt network traffic
C) Capture and analyze packets
D) Monitor application performance
✅ Correct Answer: C

Q262. Which protocol does “nslookup” use to resolve domain names?
A) DNS
B) HTTP
C) FTP
D) ICMP
✅ Correct Answer: A

Q263. What does the “show ip interface brief” command display on a Cisco router?
A) Active IP routes
B) Interface status and IP addresses
C) ARP table
D) VLAN information
✅ Correct Answer: B

Q264. A network administrator is troubleshooting a slow connection. Which of the following could be a potential cause of high latency?
A) High bandwidth usage
B) Low CPU utilization
C) Proper routing configuration
D) Low DNS resolution time
✅ Correct Answer: A

Q265. What is the purpose of “bandwidth throttling”?
A) To limit the number of devices in a network
B) To reduce network congestion
C) To allocate bandwidth evenly to all users
D) To improve security by filtering traffic
✅ Correct Answer: B

Q266. A router is used to:
A) Forward traffic within a single local network
B) Connect devices within the same network
C) Forward traffic between different networks
D) Monitor network traffic
✅ Correct Answer: C

Q267. Which tool is used to capture detailed network traffic for analysis and troubleshooting?
A) Ping
B) Wireshark
C) NetFlow
D) nslookup
✅ Correct Answer: B

Q268. What is the primary function of QoS (Quality of Service) in networking?
A) Encrypt data
B) Monitor network traffic
C) Prioritize certain types of traffic
D) Automatically detect network failures
✅ Correct Answer: C

Q269. Which of the following commands would be used to reset a Cisco router’s routing table?
A) clear ip route
B) ip route reset
C) show ip route
D) reset route table
✅ Correct Answer: A

Q270. What does the “icmp” protocol primarily do?
A) Resolves domain names to IP addresses
B) Provides error reporting and diagnostic functions
C) Encrypts data packets
D) Handles email communication
✅ Correct Answer: B

Q271. Which layer of the OSI model is responsible for end-to-end error recovery and flow control?
A) Physical
B) Transport
C) Network
D) Data Link
✅ Correct Answer: B

Q272. What is a common reason for packet loss in a network?
A) Low CPU usage
B) Congested network links
C) High bandwidth availability
D) Properly configured routing
✅ Correct Answer: B

Q273. Which protocol is used by a DNS server to resolve domain names?
A) ICMP
B) SMTP
C) DNS
D) HTTP
✅ Correct Answer: C

Q274. A switch operates primarily at which layer of the OSI model?
A) Layer 1 (Physical)
B) Layer 2 (Data Link)
C) Layer 3 (Network)
D) Layer 4 (Transport)
✅ Correct Answer: B

Q275. In network troubleshooting, which of the following would be a reason to use the “ipconfig” command?
A) To display the routing table
B) To check network interface configuration
C) To simulate network traffic
D) To view DNS records
✅ Correct Answer: B

Q276. Which of these tools is used for scanning and identifying devices on a network?
A) NetFlow
B) Nmap
C) SNMP
D) iperf
✅ Correct Answer: B

Q277. What is the default TTL (Time To Live) value for ICMP packets?
A) 32
B) 64
C) 128
D) 256
✅ Correct Answer: B

Q278. Which of these could indicate a potential issue with a network cable?
A) Low bandwidth usage
B) High network latency
C) High CPU usage
D) Low ping response times
✅ Correct Answer: B

Q279. What is the first step in the OSI model for troubleshooting a network issue?
A) Check the physical layer for hardware failures
B) Test the transport layer for flow control
C) Inspect the application layer for configuration issues
D) Verify IP addresses
✅ Correct Answer: A

Q280. What does the “show running-config” command on a Cisco router display?
A) The router’s ARP table
B) The current configuration file
C) The routing table
D) The interface statistics
✅ Correct Answer: B

Q281. Which command is used to display the current routing table on a Cisco router?
A) show ip route
B) show route
C) show interfaces
D) show arp
✅ Correct Answer: A

Q282. What does “load balancing” in networking typically refer to?
A) Ensuring fair bandwidth distribution across devices
B) Distributing traffic across multiple paths or servers
C) Assigning IP addresses to clients
D) Securing the network
✅ Correct Answer: B

Q283. Which of the following commands helps detect network configuration issues in Linux?
A) ifconfig
B) ip route
C) traceroute
D) ping
✅ Correct Answer: A

Q284. Which protocol does “traceroute” use to trace the network path?
A) ICMP
B) TCP
C) UDP
D) HTTP
✅ Correct Answer: A

Q285. In network optimization, what does “packet shaping” do?
A) It encrypts network traffic
B) It prioritizes certain types of traffic
C) It filters malicious packets
D) It reduces packet loss
✅ Correct Answer: B

Q286. What is the primary purpose of the “nslookup” command?
A) To display routing information
B) To resolve domain names to IP addresses
C) To configure network interfaces
D) To monitor network performance
✅ Correct Answer: B

Q287. Which device is used to connect multiple segments of a network and manage traffic between them?
A) Router
B) Switch
C) Hub
D) Bridge
✅ Correct Answer: A

Q288. Which of the following is commonly used to test if a port is open on a device?
A) Ping
B) Nmap
C) iperf
D) nslookup
✅ Correct Answer: B

Q289. In network troubleshooting, what does “jitter” refer to?
A) Network congestion
B) Variability in packet delay
C) Low bandwidth availability
D) High error rates
✅ Correct Answer: B

Q290. Which of the following tools is primarily used for network vulnerability scanning?
A) Wireshark
B) Nessus
C) iperf
D) Nmap
✅ Correct Answer: B

Q291. What is the primary role of a firewall in network security?
A) Encrypt data packets
B) Block unauthorized network access
C) Route traffic between networks
D) Monitor DNS traffic
✅ Correct Answer: B

Q292. What is the purpose of the “show ip arp” command on a Cisco router?
A) Display routing information
B) Display the ARP table
C) Display network statistics
D) Display IP interface status
✅ Correct Answer: B

Q293. What does the term “half-duplex” refer to in networking?
A) Simultaneous bidirectional communication
B) One-way communication at a time
C) Multi-device communication
D) Traffic is encrypted
✅ Correct Answer: B

Q294. Which of the following is a key principle of network performance optimization?
A) High latency
B) High bandwidth usage
C) Minimizing congestion and delay
D) Increased traffic prioritization
✅ Correct Answer: C

Q295. What is the most common use case for VLANs (Virtual Local Area Networks)?
A) To increase network speed
B) To segregate network traffic logically
C) To assign IP addresses dynamically
D) To connect two different networks
✅ Correct Answer: B

Q296. In IPv6, what is the function of the address type “Link-local”?
A) Used for communication across different networks
B) Used only within a local network segment
C) Used for assigning public IP addresses
D) Used for network-to-network routing
✅ Correct Answer: B

Q297. Which of the following is an advantage of using NAT (Network Address Translation)?
A) Simplifies traffic encryption
B) Improves security by masking internal IP addresses
C) Increases the size of the IP address pool
D) Provides more accurate routing information
✅ Correct Answer: B

Q298. A network administrator notices that several packets are being discarded due to collisions. Which of the following is a likely cause?
A) Congested network link
B) Duplex mismatch between devices
C) Incorrect DNS configuration
D) Misconfigured IP addresses
✅ Correct Answer: B

Q299. What does the term “spanning tree” refer to in network configuration?
A) A mechanism for selecting the fastest path between switches
B) A way to secure devices on a network
C) A protocol for detecting and preventing loops in Ethernet networks
D) A method for encrypting network traffic
✅ Correct Answer: C

Q300. Which of the following is NOT a valid type of IP address for IPv6?
A) Unicast
B) Broadcast
C) Multicast
D) Anycast
✅ Correct Answer: B