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NEW QUESTION 1
HOTSPOT
An app on a user's computer is having problems downloading data. The app uses the following URL to download data:
https://www.companypro.net:7100/api
You need to use Wireshark to capture packets sent to and received from that URL. Which Wireshark filter options would you use to filter the results? Complete the command
by selecting the correct option from each drop-down list. Note: You will receive partial credit for each correct selection.
Solution:
To capture packets sent to and received from the
URLhttps://www.companypro.net:7100/apiusing Wireshark, you would use the following filter options:
✑ Protocol:tcp
✑ Filter Type:port
✑ Port Number:7100
This filter setup in Wireshark will display all TCP packets that are sent to or received from port 7100, which is the port specified in the URL for the API service. Since HTTPS typically uses TCP as the transport layer protocol, filtering by TCP and the specific port number will help isolate the relevant packets for troubleshooting the app??s data download issues.
✑ cp: The app is using HTTPS, which relies on the TCP protocol for communication.
✑ port: The specific port number used by the application, which in this case is 7100.
✑ 7100: This is the port specified in the URL (https://www.companypro.net:7100/api). This filter will capture all TCP traffic on port 7100, allowing you to analyze the packets related to the application's data download.
References:
✑ Wireshark Filters: Wireshark Display Filters
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 2
HOTSPOT
You want to list the IPv4 addresses associated with the host name www.companypro.net. Complete the command by selecting the correct option from each drop-down list.
Solution:
To list the IPv4 addresses associated with the host name www.companypro.net, you should use the following command:
nslookup www.companypro.net
This command will query the DNS servers to find the IP address associated with the hostname provided.If you want to ensure that it returns the IPv4 address, you can specify the-type=Aoption, which stands for Address records that hold IPv4 addresses1. However,
thenslookupcommand by default should return the IPv4 address if available.
To list the IPv4 addresses associated with the host namewww.companypro.net, you should use thenslookupcommand.
✑ Command: nslookup
✑ Target:www.companypro.net So, the completed command is:
✑ nslookupwww.companypro.net
✑ nslookup: This command is used to query the Domain Name System (DNS) to obtain domain name or IP address mapping or for any other specific DNS record.
✑ www.companypro.net: This is the domain name you want to query to obtain its
associated IP addresses. References:
✑ Using nslookup: nslookup Command Guide
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 3
DRAG DROP
Move the MFA factors from the list on the left to their correct examples on the right. You may use each factor once, more than once, or not at all.
Note: You will receive partial credit for each correct selection.
Solution:
The correct matching of the MFA factors to their examples is as follows:
✑ Entering a one-time security code sent to your device after logging in: Possession
✑ Holding your phone to your face to be recognized: Inherence
✑ Specifying your user name and password to log on to a service: Knowledge Here??s why each factor matches the example:
✑ Possession: This factor is something the user has, like a mobile device. A one-
time security code sent to this device falls under this category.
✑ Inherence: This factor is something the user is, such as a biometric characteristic.
Facial recognition using a phone is an example of this factor.
✑ Knowledge: This factor is something the user knows, like a password or PIN. Multi-Factor Authentication (MFA) enhances security by requiring two or more of these factors to verify a user??s identity before granting access.
✑ Entering a one-time security code sent to your device after logging in.
✑ Holding your phone to your face to be recognized.
✑ Specifying your username and password to log on to a service.
✑ Possession Factor: This involves something the user has in their possession.
Receiving a one-time security code on a device (e.g., phone) is an example of this.
✑ Inference Factor (Inherence/Biometric): This involves something inherent to the user, such as biometric verification (e.g., facial recognition or fingerprint scanning).
✑ Knowledge Factor: This involves something the user knows, such as login credentials (username and password).
References:
✑ Multi-Factor Authentication (MFA) Explained: MFA Guide
✑ Understanding Authentication Factors: Authentication Factors
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 4
A user initiates a trouble ticket stating that an external web page is not loading. You determine that other resources both internal and external are still reachable.
Which command can you use to help locate where the issue is in the network path to the external web page?
- A. ping -t
- B. tracert
- C. ipconfig/all
- D. nslookup
Answer: B
Explanation:
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, Mac & 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
NEW QUESTION 5
DRAG DROP
Examine the connections shown in the following image. Move the cable types on the right to the appropriate connection description on the left. You may
use each cable type more than once or not at all.
Solution:
Based on the image description provided, here are the cable types matched with the appropriate connection descriptions:
Connects Switch S1 to Router R1 Gi0/0/1 interfaceCable Type: = Straight-through UTP Cable
Connects Router R2 Gi0/0/0 to Router R3 Gi0/0/0 via underground conduitCable Type
: = Fiber Optic Cable
Connects Router R1 Gi0/0/0 to Router R2 Gi0/0/1Cable Type: = Crossover UTP Cable
Connects Switch S3 to Server0 network interface cardCable Type: = Straight-through UTP Cable
The choices are based on standard networking practices where:
✑ Straight-through UTP cablesare typically used to connect a switch to a router or a network interface card.
✑ Fiber optic cablesare ideal for long-distance, high-speed data transmission, such as connections through an underground conduit.
✑ Crossover UTP cablesare used to connect similar devices, such as router-to-router connections.
These matches are consistent with the color-coded cables in the image: green for switch connections, yellow for router-to-router connections within the same rack, and blue for inter-rack connections. The use of these cables follows the Ethernet cabling standards.
✑ Connects Switch S1 to Router R1 Gi0/0/1 interface:
✑ Connects Router R2 Gi0/0/0 to Router R3 Gi0/0/0 via underground conduit:
✑ Connects Router R1 Gi0/0/0 to Router R2 Gi0/0/1:
✑ Connects Switch S3 to Server0 network interface card:
✑ Straight-through UTP Cable: Used to connect different devices (e.g., switch to router, switch to server).
✑ Crossover UTP Cable: Used to connect similar devices directly (e.g., router to
router, switch to switch).
✑ Fiber Optic Cable: Used for long-distance and high-speed connections, often between buildings or data centers.
References:
✑ Network Cable Types and Uses: Cisco Network Cables
✑ Understanding Ethernet Cabling: Ethernet Cable Guide
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 6
In the network shown in the following graphic, Switch1 is a Layer 2 switch.
PC-A sends a frame to PC-C. Switch1 does not have a mapping entry for the MAC address of PC-C. Which action does Switch1 take?
- A. Switch1 queries Switch2 for the MAC address of PC-C.
- B. Switch1 drops the frame and sends an error message back to PC-A.
- C. Switch1 floods the frame out all active ports except port G0/1.
- D. Switch1 sends an ARP request to obtain the MAC address of PC-C.
Answer: B
Explanation:
In a network, when a Layer 2 switch (like Switch1) receives a frame destined for a MAC address that is not in its MAC address table, it performs a flooding operation. This means the switch will send the frame out of all ports except the port on which the frame was received. This flooding ensures that if the destination device is connected to one of the other ports, it will receive the frame and respond, allowing the switch to learn its MAC address.
✑ A. Switch1 queries Switch2 for the MAC address of PC-C: This does not happen in
Layer 2 switches; they do not query other switches for MAC addresses.
✑ A. Switch1 drops the frame and sends an error message back to PC-A: This is not the default behavior for unknown unicast frames.
✑ D. Switch1 sends an ARP request to obtain the MAC address of PC-C: ARP is used by devices to map IP addresses to MAC addresses, not by switches to find unknown MAC addresses.
Thus, the correct answer is B. Switch1 floods the frame out all active ports except port G0/1.
References:=
✑ Cisco Layer 2 Switching Overview
✑ Switching Mechanisms (Cisco)
NEW QUESTION 7
DRAG DROP
Move each cloud computing service model from the list on the left to the correct example on the right
Note: You will receive partial credit for each correct answer.
Solution:
✑ Three virtual machines are connected by a virtual network in the cloud.
✑ Users access a web-based graphics design application in the cloud for a monthly fee.
✑ A company develops applications using cloud-based resources and tools.
✑ IaaS (Infrastructure as a Service): Provides virtualized hardware resources that customers can use to build their own computing environments.
✑ PaaS (Platform as a Service): Offers a platform with tools and services to develop,
test, and deploy applications.
✑ SaaS (Software as a Service): Delivers fully functional applications over the internet that users can access and use without managing the underlying infrastructure.
References:
✑ Cloud Service Models: Understanding IaaS, PaaS, SaaS
✑ NIST Definition of Cloud Computing:NIST Cloud Computing
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 8
Which component of the AAA service security model provides identity verification?
- A. Authorization
- B. Auditing
- C. Authentication
- D. Accounting
Answer: C
Explanation:
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)
NEW QUESTION 9
DRAG DROP
Move each network type from the list on the left to the correct example on the right.
Solution:
✑ Two home office computers are connected to a switch by Ethernet cables.
✑ Three government buildings in the same city connect to a cable company over coaxial cables.
✑ A cell phone connects to a Bluetooth headset.
✑ A financial institution connects its branches through a telecommunications service provider.
✑ LAN (Local Area Network): Used for connecting devices within a small geographical area such as a single building or home.
✑ MAN (Metropolitan Area Network): Covers a larger geographical area than a LAN,
typically a city or campus.
✑ PAN (Personal Area Network): Connects devices within the range of an individual person, such as connecting a phone to a Bluetooth headset.
✑ WAN (Wide Area Network): Spans large geographical areas, connecting multiple LANs across cities, countries, or continents.
References:
✑ Network Types Overview: Cisco Networking Basics
✑ Understanding Different Network Types: Network Types Guide
Does this meet the goal?
- A. Yes
- B. Not Mastered
Answer: A
NEW QUESTION 10
During the data encapsulation process, which OSI layer adds a header that contains MAC addressing information and a trailer used for error checking?
- A. Network
- B. Transport
- C. Data Link
- D. Session
Answer: C
Explanation:
OSI model
During the data encapsulation process, theData Link layerof the OSI model is responsible for adding a header that contains MAC addressing information and a trailer used for error checking.The header typically includes the source and destination MAC addresses, while the trailer contains a Frame Check Sequence (FCS) which is used for error detection1.
The Data Link layer ensures that messages are delivered to the proper device on a LAN using hardware addresses and translates messages from the Network layer into bits for the Physical layer to transmit. It also controls how data is placed onto the medium and is received from the medium through the physical hardware.
References:=
✑ The OSI Model – The 7 Layers of Networking Explained in Plain English
✑ OSI Model - Network Direction
✑ Which layer adds both header and trailer to the data?
✑ What is OSI Model | 7 Layers Explained - GeeksforGeeks
NEW QUESTION 11
Which two statements are true about the IPv4 address of the default gateway configured on a host? (Choose 2.)
Note: You will receive partial credit for each correct selection.
- A. The IPv4 address of the default gateway must be the first host address in the subnet.
- B. The same default gateway IPv4 address is configured on each host on the local network.
- C. The default gateway is the Loopback0 interface IPv4 address of the router connected to the same local network as the host.
- D. The default gateway is the IPv4 address of the router interface connected to the same local network as the host.
- E. Hosts learn the default gateway IPv4 address through router advertisement messages.
Answer: BD
Explanation:
•Statement B: "The same default gateway IPv4 address is configured on each host on the local network." This is true because all hosts on the same local network (subnet) use the same default gateway IP address to send packets destined for other networks.
•Statement D: "The default gateway is the IPv4 address of the router interface connected to the same local network as the host." This is true because the default gateway is the IP address of the router's interface that is directly connected to the local network.
•Statement A: "The IPv4 address of the default gateway must be the first host address in the subnet." This is not necessarily true. The default gateway can be any address within the subnet range.
•Statement C: "The default gateway is the Loopback0 interface IPv4 address of the router connected to the same local network as the host." This is not true; the default gateway is the IP address of the router's physical or logical interface connected to the local network.
•Statement E: "Hosts learn the default gateway IPv4 address through router advertisement messages." This is generally true for IPv6 with Router Advertisement (RA) messages, but not typically how IPv4 hosts learn the default gateway address.
References:
•Cisco Default Gateway Configuration: Cisco Default Gateway
NEW QUESTION 12
Which device protects the network by permitting or denying traffic based on IP address, port number, or application?
- A. Firewall
- B. Access point
- C. VPN gateway
- D. Intrusion detection system
Answer: A
Explanation:
✑ Firewall: A firewall is a network security device that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It permits or denies traffic based on IP addresses, port numbers, or applications.
✑ Access Point: This is a device that allows wireless devices to connect to a wired
network using Wi-Fi. It does not perform traffic filtering based on IP, port, or application.
✑ VPN Gateway: This device allows for secure connections between networks over
the internet, but it is not primarily used for traffic filtering based on IP, port, or application.
✑ Intrusion Detection System (IDS): This device monitors network traffic for
suspicious activity and policy violations, but it does not actively permit or deny traffic.
References:
✑ Understanding Firewalls: Firewall Basics
NEW QUESTION 13
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