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web.groovymark@gmail.com
- December 3, 2024
Question 01
A network administrator is troubleshooting a routing issue and needs to check which routes are known to a router. What command should be used to display the routing table on a Cisco router?
a) show ip route
b) show interface
c) show config
d) show protocols
Correct Answer: a) show ip route
Explanation: The show ip route command displays the routing table on a Cisco router.
Question 02
Which of the following describes the purpose of a DMZ in a network?
a) To secure internal traffic
b) To segment sensitive data
c) To create a buffer zone between the public Internet and the internal network
d) To act as a firewall
Correct Answer: c) To create a buffer zone between the public Internet and the internal network
Explanation: A DMZ (demilitarized zone) is a buffer area that separates an organization's internal network from the public Internet.
Question 03
Which of the following is the maximum transmission unit (MTU) for a standard Ethernet frame?
a) 1500 bytes
b) 1518 bytes
c) 1400 bytes
d) 9000 bytes
Correct Answer: a) 1500 bytes
Explanation: The maximum transmission unit (MTU) for a standard Ethernet frame is 1500 bytes, which refers to the payload size excluding headers.
Question 04
A network technician is setting up a new wireless network and wants to ensure it is encrypted. Which of the following encryption standards should be used to provide the strongest security?
a) WEP
b) WPA
c) WPA2
d) Open network
Correct Answer: c) WPA2
Explanation: WPA2 provides the strongest encryption for wireless networks using AES encryption.
Question 05
Which of the following is the default port used by DNS to resolve domain names to IP addresses?
a) 53
b) 80
c) 25
d) 110
Correct Answer: a) 53
Explanation: DNS operates on port 53, which is used for both TCP and UDP traffic.
Question 06
What type of cabling is typically used for a cable television (CATV) connection?
a) Fiber optic
b) UTP
c) Coaxial
d) STP
Correct Answer: c) Coaxial
Explanation: Coaxial cables are commonly used for cable television (CATV) connections and some broadband Internet connections.
Question 07
Which of the following is a valid IP address in the Class B private IP range?
a) 10.1.1.1
b) 172.16.5.1
c) 192.168.10.10
d) 169.254.1.1
Correct Answer: b) 172.16.5.1
Explanation: The Class B private IP range is 172.16.0.0 to 172.31.255.255.
Question 08
A technician needs to use an IP addressing scheme that allows for subnetting and supernetting. Which of the following protocols supports this capability?
a) RIP
b) OSPF
c) IGRP
d) EIGRP
Correct Answer: d) EIGRP
Explanation: EIGRP (Enhanced Interior Gateway Routing Protocol) supports subnetting and supernetting, allowing for more flexible IP addressing.
Question 09
Which of the following commands is used on a Windows system to display the IP configuration and network adapter details?
a) nslookup
b) ifconfig
c) ipconfig
d) ping
Correct Answer: c) ipconfig
Explanation: The ipconfig command in Windows is used to display network adapter details, IP address, subnet mask, and default gateway.
Question 10
Which of the following DNS records is used to specify the mail servers responsible for receiving email for a domain?
a) A
b) MX
c) CNAME
d) AAAA
Correct Answer: b) MX
Explanation: The MX (Mail Exchange) record specifies the mail servers responsible for receiving email for a domain.
Question 11
A technician needs to install new wireless access points in a building with multiple floors. Which of the following antennas would provide the best coverage in this environment?
a) Omnidirectional
b) Yagi
c) Directional
d) Parabolic
Correct Answer: a) Omnidirectional
Explanation: Omnidirectional antennas provide 360-degree coverage and are ideal for environments like multi-floor buildings.
Question 12
What protocol is used by email clients to retrieve messages from a mail server?
a) SMTP
b) POP3
c) SNMP
d) NTP
Correct Answer: b) POP3
Explanation: POP3 (Post Office Protocol 3) is used by email clients to retrieve messages from a mail server.
Question 13
A network administrator wants to create a secure method for remote users to connect to the internal network. Which of the following should the administrator implement?
a) Telnet
b) FTP
c) VPN
d) HTTP
Correct Answer: c) VPN
Explanation: A VPN (Virtual Private Network) allows secure remote access to the internal network over the Internet.
Question 14
Which of the following devices separates broadcast domains in a network?
a) Hub
b) Switch
c) Router
d) Repeater
Correct Answer: c) Router
Explanation: Routers separate broadcast domains, while switches and hubs operate within the same broadcast domain.
Question 15
A technician is configuring an 802.1Q trunk link between two switches. What is the purpose of this configuration?
a) To prevent loops in the network
b) To allow multiple VLANs to communicate over a single physical link
c) To secure the network from unauthorized access
d) To assign IP addresses to devices
Correct Answer: b) To allow multiple VLANs to communicate over a single physical link
Explanation: 802.1Q is a VLAN trunking protocol that allows multiple VLANs to be carried over a single physical link.
Question 16
What is the default subnet mask for a Class C IP address?
a) 255.0.0.0
b) 255.255.0.0
c) 255.255.255.0
d) 255.255.255.255
Correct Answer: c) 255.255.255.0
Explanation: The default subnet mask for a Class C IP address is 255.255.255.0, which allows for 256 addresses.
Question 17
Which of the following protocols uses port 22 to provide secure remote access to network devices?
a) HTTP
b) Telnet
c) SSH
d) RDP
Correct Answer: c) SSH
Explanation: SSH (Secure Shell) uses port 22 to provide secure remote access to network devices.
Question 18
Which of the following commands is used to trace the route that packets take to reach a destination?
a) ping
b) tracert
c) ipconfig
d) netstat
Correct Answer: b) tracert
Explanation: The tracert command traces the route that packets take to reach a destination, showing each hop along the way.
Question 19
What is the purpose of NAT (Network Address Translation)?c
a) To assign IP addresses to devices
b) To map private IP addresses to public IP addresses for Internet communication
c) To provide encryption for sensitive data
d) To allocate bandwidth based on priority
Correct Answer: b) To map private IP addresses to public IP addresses for Internet communication
Explanation: NAT allows devices with private IP addresses to communicate with external networks by translating private IP addresses into public ones.
Question 20
A network administrator wants to restrict traffic between two VLANs. What type of device is required to implement this configuration?
a) Hub
b) Repeater
c) Router
d) Switch
Correct Answer: c) Router
Explanation: Routers are used to route traffic between different VLANs.
