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web.groovymark@gmail.com
- December 3, 2024
Question 21
Which of the following protocols is used to monitor and manage network devices?
a) SNMP
b) SMTP
c) DHCP
d) ARP
Correct Answer: a) SNMP
Explanation: SNMP (Simple Network Management Protocol) is used to monitor and manage network devices.
Question 22
A technician is setting up a DHCP server. What is the primary function of a DHCP server?
a) Assign IP addresses to clients automatically
b) Resolve domain names to IP addresses
c) Manage bandwidth allocation
d) Secure network traffic with encryption
Correct Answer: a) Assign IP addresses to clients automatically
Explanation: DHCP (Dynamic Host Configuration Protocol) is used to automatically assign IP addresses to network devices.
Question 23
Which of the following commands is used to determine the MAC address of a network interface on a Windows machine?
a) ipconfig /all
b) ping
c) nslookup
d) route print
Correct Answer: a) ipconfig /all
Explanation: The ipconfig /all command shows detailed network information, including the MAC address of each network interface.
Question 24
Which of the following is used to transmit data in small, fixed-sized cells in a network, typically over high-speed links?
a) Frame relay
b) ATM
c) MPLS
d) PPP
Correct Answer: b) ATM
Explanation: ATM (Asynchronous Transfer Mode) uses small, fixed-sized cells to transmit data over high-speed links.
Question 25
What is the default port used by HTTPS for secure web traffic?
a) 21
b) 80
c) 443
d) 25
Correct Answer: c) 443
Explanation: HTTPS (HyperText Transfer Protocol Secure) uses port 443 for secure web traffic.
Question 26
A technician needs to check for packet loss between two points on a network. Which command should the technician use?
a) ping
b) tracert
c) nslookup
d) netstat
Correct Answer: a) ping
Explanation: The ping command sends ICMP packets and measures the response to detect packet loss and latency.
Question 27
A network administrator is implementing port security on a switch. What is the purpose of port security?
a) To prevent unauthorized devices from accessing the network
b) To encrypt traffic on the network
c) To assign VLANs to ports
d) To manage bandwidth allocation
Correct Answer: a) To prevent unauthorized devices from accessing the network
Explanation: Port security restricts access to specific MAC addresses on a switch port to prevent unauthorized devices from connecting.
Question 28
What is the purpose of a firewall in a network?
a) To allocate IP addresses to devices
b) To filter and control incoming and outgoing network traffic
c) To route traffic between VLANs
d) To connect devices within the same network
Correct Answer: b) To filter and control incoming and outgoing network traffic
Explanation: A firewall monitors and filters incoming and outgoing traffic based on predefined security rules.
Question 29
A network administrator needs to configure a server that will store and provide access to large amounts of data. Which type of server should be used?
a) Web server
b) DNS server
c) File server
d) Mail server
Correct Answer: c) File server
Explanation: A file server is used to store and provide access to large amounts of data.
Question 30
Which of the following protocols operates at the Transport layer of the OSI model and provides reliable data delivery?
a) UDP
b) IP
c) TCP
d) ARP
Correct Answer: c) TCP
Explanation: TCP (Transmission Control Protocol) operates at the Transport layer and provides reliable, connection-oriented data delivery.
Question 31
Which of the following IPv6 address types is used to communicate with all nodes on a network segment?
a) Unicast
b) Multicast
c) Anycast
d) Broadcast
Correct Answer: b) Multicast
Explanation: IPv6 does not use broadcasts. Multicast addresses are used to send packets to multiple nodes in a group.
Question 32
Which of the following protocols is used to securely access a remote computer’s desktop over a network?
a) SSH
b) FTP
c) RDP
d) Telnet
Correct Answer: c) RDP
Explanation: RDP (Remote Desktop Protocol) is used to securely access a remote computer's desktop over a network.
Question 33
A technician is troubleshooting an IP address conflict on a network. Which of the following tools can be used to identify the MAC address associated with an IP address?
a) nslookup
b) ping
c) arp
d) tracert
Correct Answer: c) arp
Explanation: The arp command is used to map IP addresses to MAC addresses.
Question 34
Which of the following standards defines Power over Ethernet (PoE), allowing network cables to carry electrical power?
a) 802.1q
b) 802.11ac
c) 802.3af
d) 802.11n
Correct Answer: c) 802.3af
Explanation: The 802.3af standard defines Power over Ethernet (PoE), which allows network cables to carry electrical power.
Question 35
A network technician needs to prevent loops in a network with redundant links between switches. Which protocol should be enabled on the switches?
a) RIP
b) STP
c) OSPF
d) EIGRP
Correct Answer: b) STP
Explanation: STP (Spanning Tree Protocol) prevents loops in a network with redundant links by logically blocking some paths.
Question 36
Which of the following commands is used to display the routing table on a Linux system?
a) route
b) ipconfig
c) netstat
d) tracert
Correct Answer: a) route
Explanation: The route command is used to display and manipulate the IP routing table on a Linux system.
Question 37
A network administrator needs to configure a VLAN on a switch. What is the purpose of VLANs in a network?
a) To separate network traffic into different segments
b) To allocate bandwidth based on application priority
c) To secure the network from unauthorized access
d) To enable wireless access points
Correct Answer: a) To separate network traffic into different segments
Explanation: VLANs (Virtual Local Area Networks) separate network traffic into different segments, improving security and performance.
Question 38
A user is trying to access a website but is receiving a “Page not found” error. The network is functioning, and the IP address is correct. What might be causing the problem?
a) Incorrect IP address
b) DNS resolution failure
c) Network congestion
d) Misconfigured firewall
Correct Answer: b) DNS resolution failure
Explanation: A "Page not found" error can be caused by a DNS resolution failure, where the domain name cannot be translated to an IP address.
Question 39
A technician is installing new fiber optic cabling for a high-speed network connection. What is an advantage of using fiber optic cables over copper cables?
a) Fishbone diagram
b) Pareto chart
c) Control chart
d) Scatter diagram
Correct Answer: b) Less attenuation over long distances
Explanation: Fiber optic cables experience less attenuation over long distances and are immune to electromagnetic interference.
Question 40
Which of the following protocols is used to synchronize time between devices on a network?
a) NTP
b) FTP
c) SNMP
d) SMTP
Correct Answer: a) NTP
Explanation: NTP (Network Time Protocol) is used to synchronize time between devices on a network.
