D325 Networks Final - Set 5 - Part 1

Test your knowledge of technical writing concepts with these practice questions. Each question includes detailed explanations to help you understand the correct answers.

Question 1: Which protocol is responsible for assigning IP addresses automatically to devices on a network?

DNS

DHCP

FTP

SNMP

Question 2: Which of the following devices operates at the data link layer (Layer 2) of the OSI model?

Router

Switch

Firewall

Hub

Question 3: What is the purpose of Network Address Translation (NAT) in a network?

To assign MAC addresses

To filter IP traffic

To translate private IP addresses into public IP addresses

To prevent routing loops

Question 4: A technician needs to remotely manage a router securely. Which protocol should be used?

Telnet

FTP

SSH

SNMP

Question 5: Which of the following addresses is used for broadcast traffic within a local subnet?

192.168.1.1

127.0.0.1

0.0.0.0

255.255.255.255

Question 6: What type of attack involves overwhelming a network or system with excessive traffic to cause service disruption?

Phishing

Man-in-the-middle

DDoS

Spoofing

Question 7: Which protocol is used to securely transfer files between a client and server?

FTP

TFTP

SFTP

POP3

Question 8: A network administrator needs to monitor network traffic in real time. Which tool should be used?

Wireshark

nslookup

traceroute

ping

Question 9: What is the maximum number of usable host addresses in a subnet with a subnet mask of 255.255.255.240 (/28)?

Question 10: Which protocol is used to provide email retrieval from a remote server?

SMTP

IMAP

FTP

DHCP

Question 11: What feature of routers enables the connection between two or more different IP networks?

Switching

NAT

Routing

VLAN

Question 12: Which of the following wireless security protocols is considered the weakest and should not be used?

WPA2

WPA3

WEP

802.1x

Question 13: Which type of address is used to communicate with all devices on a local network?

Unicast

Multicast

Broadcast

Anycast

Question 14: What type of cable is commonly used for high-speed data transfer over long distances?

Coaxial

Fiber optic

Twisted pair

Serial

Question 15: Which of the following is a primary function of a firewall?

Assigning IP addresses

Filtering network traffic

Monitoring performance

Encrypting data

Question 16: What device is used to extend a network segment and reduce the number of collision domains?

Switch

Repeater

Bridge

Hub

Question 17: Which of the following IP addresses is reserved for a loopback test?

192.168.1.1

10.0.0.1

127.0.0.1

0.0.0.0

Question 18: Which protocol allows multiple devices to share a single IP address when connecting to the internet?

DHCP

DNS

NAT

SNMP

Question 19: What is the purpose of VLANs in a network?

To provide internet access

To create multiple physical networks

To divide a network into logical segments

To route traffic between different networks

Question 20: A network administrator wants to prevent unauthorized access to network devices. Which authentication method should be used?

LDAP

SNMP

HTTP

Telnet

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