CCST-NETWORKING Online Practice Questions and Answers

Correct Answer: C

The AAA service security model consists of three components: Authentication, Authorization, and Accounting.

-Authentication: This is the process of verifying the identity of a user or device. It ensures that only legitimate users can access the network or service.-Authorization: This determines what an authenticated user is allowed to do or access

within the network.

-Auditing/Accounting: This component tracks the actions of the user, including what resources they access and what changes they make.

Thus, the correct answer is C. Authentication.

References :

-Cisco AAA Overview

-Understanding AAA (Authentication, Authorization, and Accounting)

Correct Answer: D

The primary purpose of assigning an IP address to the management VLAN interface on a Layer 2 switch is to facilitate remote management of the switch. By configuring an IP address on the management VLAN, network administrators can

access the switch's Command Line Interface (CLI) remotely using protocols such as Telnet or Secure Shell (SSH). This allows for convenient configuration changes, monitoring, and troubleshooting without needing physical access to the

switch1.

References:

-Understanding the Management VLAN

-Cisco - VLAN Configuration Guide

-Remote Management of Switches

Assigning an IP address to the management VLAN interface (often the VLAN 1 interface by default) on a Layer 2 switch allows network administrators to remotely manage the switch using protocols such as Telnet or SSH. This IP address

does not affect the switch's ability to route traffic between VLANs but provides a means to access and configure the switch through its Command Line Interface (CLI).

-A: The switch does not act as a default gateway; this is typically a function of a Layer 3 device like a router.

-B: The switch does not resolve URLs; this is typically a function of DNS servers.

-C: The switch can relay DHCP requests but does not typically provide DHCP services

itself; this is usually done by a dedicated DHCP server or router.

Thus, the correct answer is D. To enable access to the CLI on the switch through Telnet or SSH.

References :

-Cisco VLAN Management Overview

-Cisco Catalyst Switch Management

Correct Answer: B

The tracert command is used to determine the route taken by packets across an IP network. When a user reports that an external web page is not loading, while other resources are accessible, it suggests there might be an issue at a certain

point in the network path to the specific web page. The tracert command helps to diagnose where the breakdown occurs by displaying a list of routers that the packets pass through on their way to the destination. It can identify the network

segment where the packets stop progressing,

which is valuable for pinpointing where the connectivity issue lies. References := Cisco

CCST Networking Certification FAQs ?CISCONET Training Solutions, Command Prompt (CMD): 10 network-related commands you should know, Network Troubleshooting Commands Guide: Windows, Macand; Linux - Comparitech, How to

Use the Traceroute and Ping Commands to Troubleshoot Network, Network Troubleshooting Techniques: Ping, Traceroute, PathPing. -tracert Command: This command is used to determine the path packets take to reach a destination. It lists

all the hops (routers) along the way and can help identify where the delay or failure occurs. -ping -t: This command sends continuous ping requests and is useful for determining if a host is reachable but does not provide path information. ipconfig /all: This command displays all current TCP/IP network configuration values and can be used to verify network settings but not to trace a network path.

-nslookup: This command queries the DNS to obtain domain name or IP address mapping,

useful for DNS issues but not for tracing network paths.

References:

-Microsoft tracert Command: tracert Command Guide

-Troubleshooting Network Issues with tracert: Network Troubleshooting Guide

Correct Answer: C

The header of a UDP (User Datagram Protocol) segment includesport numbers. Specifically, it contains the source port number and the destination port number, which are used to identify the sending and receiving applications. UDP headers do not include IP addresses or MAC addresses, as those are part of the IP and Ethernet frame headers, respectively.Additionally, UDP does not use sequence numbers, which are a feature of TCP (Transmission Control Protocol) for ensuring reliable delivery of data segments1. References: Segmentation Explained with TCP and UDP Header User Datagram Protocol (UDP) - GeeksforGeeks Which three fields are used in a UDP segment header ========================= UDP Header: The header of a UDP segment includes the following key fields: IP Addresses: These are included in the IP header, not the UDP header. Sequence Numbers: These are part of the TCP header, not UDP. MAC Addresses: These are part of the Ethernet frame header and are not included in the UDP header. References: RFC 768 - User Datagram Protocol: RFC 768 Cisco Guide on UDP: Cisco UDP Guide

Correct Answer: C

In the provided image of the Cisco PoE switch, the ports identified with number 6 are the standard RJ-45 Ethernet ports typically found on switches that provide both data connectivity and Power over Ethernet (PoE). PoE ports are designed to

supply power to devices such as IP phones, wireless access points, and other PoE-enabled devices directly through the Ethernet cable.

Ports:

2: Console port (for management and configuration)

3 and 4: Specific function ports (often for management)

6: RJ-45 Ethernet ports (capable of providing PoE)

7: SFP ports (for fiber connections, typically do not provide PoE) Thus, the correct answer is C. Ports identified with number 6.

References:

cisco Catalyst 2960-L Series Switches Data Sheet Cisco PoE Overview

Correct Answer: B

To store files that will be accessible by every user on a network, you would need aserver. A server is a computer system that provides data to other computers. It can serve data to systems on a local network (LAN) or a wide network (WAN)

over the internet.In this context, a file server would be set up to store and manage files, allowing users on the network to access them from their own devices1.

References:

What is a Server?

Understanding Servers and Their Functions

A server is a computer designed to process requests and deliver data to other computers over a local network or the internet. In this case, to store files that will be accessible by every user on the network, a file server is the appropriate

endpoint device. It provides a centralized location for storing and managing files, allowing users to access and share files easily. A. Access point: Provides wireless connectivity to a network. C. Hub: A basic networking device that connects

multiple Ethernet devices together, making them act as a single network segment. D. Switch: A networking device that connects devices on a computer network by using packet switching to forward data to the destination device.

Thus, the correct answer is B. Server.

References:

File Server Overview (Cisco)

Server Roles in Networking (Cisco)

Correct Answer: A

SFTP, or Secure File Transfer Protocol, is a protocol that allows for secure file transfer capabilities between networked hosts. It is a secure extension of the File Transfer Protocol (FTP). SFTP encrypts both commands and data, preventing

passwords and sensitive information from being transmitted openly over the network. It is typically used for secure file transfers over the internet and is built on the Secure Shell (SSH) protocol1.

References:

-What Is SFTP? (Secure File Transfer Protocol)

-How to Use SFTP to Safely Transfer Files: A Step-by-Step Guide

-Secure File Transfers: Best Practices, Protocols And Tools

The Secure File Transfer Protocol (SFTP) is a secure version of the File Transfer Protocol (FTP) that uses SSH (Secure Shell) to encrypt all commands and data. This ensures that sensitive information, such as usernames, passwords, and

files being transferred, are securely transmitted over the network.

-ICMP (Internet Control Message Protocol) is used for network diagnostics and is not designed for file transfer.

-NTP (Network Time Protocol) is used to synchronize clocks between computer systems and is not related to file transfer.

-HTTP (HyperText Transfer Protocol) is used for transmitting web pages over the internet and does not inherently provide secure file transfer capabilities.

Thus, the correct protocol that allows secure uploading of files to another computer on the internet is SFTP.

References:

-Cisco Learning Network

-SFTP Overview (Cisco)

Correct Answer: A

WPA2-Personal, also known as WPA2-PSK (Pre-Shared Key), is the wireless security option that uses a pre-shared key to authenticate clients. This method is designed for home and small office networks and doesn't require an

authentication server. Instead, every user on the network uses the same key or passphrase to connect.

References:

-What is a Wi-Fi Protected Access Pre-Shared Key (WPA-PSK)?

-Exploring WPA-PSK and WiFi Security

=========================

-WPA2-Personal: This wireless security option uses a pre-shared key (PSK) for authentication. Each client that connects to the network must use this key to gain access. It is designed for home and small office networks where simplicity and

ease of use are important.

-WPA2-Enterprise: Unlike WPA2-Personal, WPA2-Enterprise uses 802.1x authentication with an authentication server (such as RADIUS) and does not rely on a pre-shared key. -802.1x: This is a network access control protocol for LANs,

particularly wireless LANs. It provides an authentication mechanism to devices wishing to attach to a LAN or WLAN. -802.1q: This is a networking standard that supports VLAN tagging on Ethernet networks and is not related to wireless

security.

References:

Cisco Documentation on WPA2 Security: Cisco WPA2 Understanding Wireless Security: Wireless Security Guide

Correct Answer:

The correct matching of the protocols to their examples is as follows:

DHCP: Assign the reserved IP address 10.10.10.200 to a web server at your company.

DNS: Perform a query to translate companypro.net to an IP address. ICMP: Perform a ping to ensure that a server is responding to network connections.

Here's how each protocol corresponds to its example:

DHCP (Dynamic Host Configuration Protocol)is used to assign IP addresses to devices on a network. In this case, DHCP would be used to assign the reserved IP address 10.10.10.200 to a web server.

DNS (Domain Name System)is used to translate domain names into IP addresses. Therefore, to translate companypro.net to an IP address, DNS would be utilized. ICMP (Internet Control Message Protocol)is used for sending error

messages and operational information indicating success or failure when communicating with another IP address. An example of this is using the ping command to check if a server is responding to network connections.

These protocols are essential for the smooth operation of networks and the internet.

Perform a query to translate companypro.net to an IP address. Assign the reserved IP address 10.10.10.200 to a web server at your company. Perform a ping to ensure that a server is responding to network connections.

DNS (Domain Name System): DNS translates human-friendly domain names like "companypro.net" into IP addresses that computers use to identify each other on the network.

DHCP (Dynamic Host Configuration Protocol): DHCP automatically assigns IP addresses to devices on a network, ensuring that no two devices have the same IP address.

ICMP (Internet Control Message Protocol): ICMP is used for diagnostic or control purposes, and the ping command uses ICMP to test the reachability of a host on an IP network.

References:

DNS Basics: What is DNS?

DHCP Overview: What is DHCP?

ICMP and Ping: Understanding ICMP

Correct Answer:

To determine if you can reach the router, you should use thepingcommand followed by the IP address of the router. Thepingcommand is a network utility used to test the reachability of a host on an Internet Protocol (IP) network and to

measure the round-trip time for messages sent from the originating host to a destination computer. The Default Gateway in theipconfigresults is typically the router's IP address in a home or small office network. In this case, the Default

Gateway is192.168.0.1, which is the address you would ping to check connectivity to the router.

References:

How to Use the Ping Command

Testing Network Connectivity with the Ping Command =========================

To determine if you can reach the router, you should use thepingcommand with the IP address of the router.

Command:ping

Target:192.168.0.1

So, the completed command is:

ping 192.168.0.1

Step by Step Comprehensive and Detailed Explanation:

ping: The ping command sends ICMP Echo Request messages to the target IP address and waits for an Echo Reply. It is commonly used to test the reachability of a network device.

192.168.0.1: This is the IP address of the default gateway (the router) as shown in theipconfigoutput. Pinging this address will help determine if the computer can communicate with the router.

References:

Using the ping Command: ping Command Guide