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NEW QUESTION # 14
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.
Answer:
Explanation:
Explanation:
To capture packets sent to and received from the URL https://www.companypro.net:7100/api using
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.
tcp: 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.
Reference: Wireshark Filters: Wireshark Display Filters
NEW QUESTION # 15
Move each network type from the list on the left to the correct example on the right.
Answer:
Explanation:
* Two home office computers are connected to a switch by Ethernet cables.
* Network Type: LAN (Local Area Network)
* Explanation: A LAN connects devices within a limited area such as a home, office, or building, using Ethernet cables or Wi-Fi.
* Three government buildings in the same city connect to a cable company over coaxial cables.
* Network Type: MAN (Metropolitan Area Network)
* Explanation: A MAN connects networks across a city or campus, often using fiber optic or coaxial cables.
* A cell phone connects to a Bluetooth headset.
* Network Type: PAN (Personal Area Network)
* Explanation: A PAN connects devices within a personal workspace, typically using wireless technologies like Bluetooth.
* A financial institution connects its branches through a telecommunications service provider.
* Network Type: WAN (Wide Area Network)
* Explanation: A WAN connects multiple LANs over long distances, often using leased lines or satellite links provided by telecommunications companies.
* 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
NEW QUESTION # 16
Which command will display all the current operational settings configured on a Cisco router?
- A. show version
- B. show running-config
- C. show protocols
- D. show startup-config
Answer: B
Explanation:
The show running-config command is used on a Cisco router to display the current operational settings that are actively configured in the router's RAM. This command outputs all the configurations that are currently being executed by the router, which includes interface configurations, routing protocols, access lists, and other settings. Unlike show startup-config, which shows the saved configuration that the router will use on the next reboot, show running-config reflects the live, current configuration in use.
Reference: = The information is supported by multiple sources that detail the use of Cisco commands, particularly the show running-config command as the standard for viewing the active configuration on a Cisco device123.
show running-config: This command displays the current configuration running on the router. It includes all the operational settings and configurations applied to the router.
show protocols: This command shows the status of configured protocols on the router but not the entire configuration.
show startup-config: This command displays the configuration saved in NVRAM, which is used to initialize the router on startup, but not necessarily the current running configuration.
show version: This command provides information about the router's software version, hardware components, and uptime but does not display the running configuration.
Reference: Cisco IOS Commands: Cisco IOS Commands
NEW QUESTION # 17
HOTSPOT
You purchase a new Cisco switch, turn it on, and connect to its console port. You then run the following command:
For each statement about the output, select True or False. Note: You will receive partial credit for each correct selection.
Answer:
Explanation:
Explanation:
The two interfaces are administratively shut down:
False: The output does not show any "shutdown" command under the interfaces, which would indicate that they are administratively shut down. Therefore, they are likely in their default state, which is administratively up.
The two interfaces have default IP addresses assigned:
False: The output does not show any IP address configuration. In the default state, interfaces do not have IP addresses assigned unless explicitly configured.
The two interfaces can communicate over Layer 2:
True: By default, interfaces on a switch are Layer 2 interfaces capable of forwarding Ethernet frames. As there is no configuration provided that changes this, it can be assumed they can communicate over Layer 2.
Interface Status: The absence of the "shutdown" command means the interfaces are not administratively shut down.
IP Address Assignment: There is no evidence in the output that IP addresses have been assigned to the interfaces, which would typically be shown as "ip address" entries.
Layer 2 Communication: Switch interfaces in their default state operate at Layer 2, enabling them to forward Ethernet frames and participate in Layer 2 communication.
Reference: Cisco IOS Interface Configuration: Cisco Interface Configuration
Understanding Cisco Switch Interfaces: Cisco Switch Interfaces
NEW QUESTION # 18
During the data encapsulation process, which OSI layer adds a header that contains MAC addressing information and a trailer used for error checking?
- A. Session
- B. Transport
- C. Data Link
- D. Network
Answer: C
Explanation:
OSI model
During the data encapsulation process, the Data Link layer of 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 # 19
You need to connect a computer's network adapter to a switch using a 1000BASE-T cable.
Which connector should you use?
- A. OS2 LC
- B. RJ-11
- C. RJ-45
- D. Coax
Answer: C
Explanation:
*1000BASE-T Cable: This refers to Gigabit Ethernet over twisted-pair cables (Cat 5e or higher).
*Connector: RJ-45 connectors are used for Ethernet cables, including those used for 1000BASE-T.
*Coax: Used for cable TV and older Ethernet standards like 10BASE2.
*RJ-11: Used for telephone connections.
*OS2 LC: Used for fiber optic connections.
References:
*Ethernet Standards and Cables: Ethernet Cable Guide
NEW QUESTION # 20
Which command will display all the current operational settings configured on a Cisco router?
- A. show version
- B. show running-config
- C. show protocols
- D. show startup-config
Answer: B
Explanation:
Router
The show running-config command is used on a Cisco router to display the current operational settings that are actively configured in the router's RAM. This command outputs all the configurations that are currently being executed by the router, which includes interface configurations, routing protocols, access lists, and other settings. Unlike show startup-config, which shows the saved configuration that the router will use on the next reboot, show running-config reflects the live, current configuration in use.
References := The information is supported by multiple sources that detail the use of Cisco commands, particularly the show running-config command as the standard for viewing the active configuration on a Cisco device123.
* show running-config: This command displays the current configuration running on the router. It includes all the operational settings and configurations applied to the router.
* show protocols: This command shows the status of configured protocols on the router but not the entire configuration.
* show startup-config: This command displays the configuration saved in NVRAM, which is used to initialize the router on startup, but not necessarily the current running configuration.
* show version: This command provides information about the router's software version, hardware components, and uptime but does not display the running configuration.
References:
* Cisco IOS Commands: Cisco IOS Commands
NEW QUESTION # 21
Move the security options from the list on the left to its characteristic on the right. You may use each security option once, more than once, or not at all.
Note: You will receive partial credit for each correct answer.
Answer:
Explanation:
Explanation:
The correct matching of the security options to their characteristics is as follows:
* WPA2-Enterprise: Uses a RADIUS server for authentication
* WEP: Uses a minimum of 40 bits for encryption
* WPA2-Personal: Uses AES and a pre-shared key for authentication
Here's why each security option matches the characteristic:
* WPA2-Enterprise uses a RADIUS server for authentication, which provides centralized Authentication, Authorization, and Accounting (AAA) management for users who connect and use a network service.
* WEP (Wired Equivalent Privacy) is an outdated security protocol that uses a minimum of 40 bits for encryption (and up to 104 bits), which is relatively weak by today's standards.
* WPA2-Personal (Wi-Fi Protected Access 2 - Personal) uses the Advanced Encryption Standard (AES) for encryption and a pre-shared key (PSK) for authentication, which is shared among users to access the network.
These security options are essential for protecting wireless networks from unauthorized access and ensuring data privacy.
NEW QUESTION # 22
A host is given the IP address 172.16.100.25 and the subnet mask 255.255.252.0.
What is the CIDR notation for this address?
- A. 172.16.100.25 /23
- B. 172.16.100.25 /20
- C. 172.16.100.25 /21
- D. 172.16.100.25 /22
Answer: D
Explanation:
The CIDR (Classless Inter-Domain Routing) notation for the subnet mask 255.255.252.0 is /22. This notation indicates that the first 22 bits of the IP address are used for network identification, and the remaining bits are used for host addresses within the network1.
References :=
*Subnet Cheat Sheet - 24 Subnet Mask, 30, 26, 27, 29, and other IP Address CIDR Network References
*Subnet Mask to CIDR Notation: The given subnet mask is 255.255.252.0. To convert this to CIDR notation:
*Convert the subnet mask to binary: 11111111.11111111.11111100.00000000
*Count the number of consecutive 1s in the binary form: There are 22 ones.
*Therefore, the CIDR notation is /22.
References:
*Understanding Subnetting and CIDR: Cisco CIDR Guide
NEW QUESTION # 23
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.
Answer:
Explanation:
Explanation:
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 interface Cable Type: = Straight-through UTP Cable
Connects Router R2 Gi0/0/0 to Router R3 Gi0/0/0 via underground conduit Cable Type: = Fiber Optic Cable
Connects Router R1 Gi0/0/0 to Router R2 Gi0/0/1 Cable Type: = Crossover UTP Cable
Connects Switch S3 to Server0 network interface card Cable Type: = Straight-through UTP Cable
The choices are based on standard networking practices where:
Straight-through UTP cables are typically used to connect a switch to a router or a network interface card.
Fiber optic cables are ideal for long-distance, high-speed data transmission, such as connections through an underground conduit.
Crossover UTP cables are 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:
Cable Type: Straight-through UTP Cable
A straight-through UTP cable is typically used to connect different types of devices, such as a switch to a router.
Connects Router R2 Gi0/0/0 to Router R3 Gi0/0/0 via underground conduit:
Cable Type: Fiber Optic Cable
Fiber optic cables are used for long-distance connections, such as those through an underground conduit between buildings.
Connects Router R1 Gi0/0/0 to Router R2 Gi0/0/1:
Cable Type: Crossover UTP Cable
A crossover UTP cable is typically used to connect similar devices directly, such as router to router connections.
Connects Switch S3 to Server0 network interface card:
Cable Type: Straight-through UTP Cable
A straight-through UTP cable is typically used to connect a switch to an end device, such as a server.
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.
Reference: Network Cable Types and Uses: Cisco Network Cables
Understanding Ethernet Cabling: Ethernet Cable Guide
NEW QUESTION # 24
DRAG DROP
Move each network type from the list on the left to the correct example on the right.
Answer:
Explanation:
Explanation:
Two home office computers are connected to a switch by Ethernet cables.
Network Type: LAN (Local Area Network)
A LAN connects devices within a limited area such as a home, office, or building, using Ethernet cables or Wi-Fi.
Three government buildings in the same city connect to a cable company over coaxial cables. Network Type: MAN (Metropolitan Area Network)
A MAN connects networks across a city or campus, often using fiber optic or coaxial cables.
A cell phone connects to a Bluetooth headset.
Network Type: PAN (Personal Area Network)
A PAN connects devices within a personal workspace, typically using wireless technologies like Bluetooth.
A financial institution connects its branches through a telecommunications service provider. Network Type: WAN (Wide Area Network)
A WAN connects multiple LANs over long distances, often using leased lines or satellite links provided by telecommunications companies.
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.
Reference: Network Types Overview: Cisco Networking Basics
Understanding Different Network Types: Network Types Guide
NEW QUESTION # 25
You purchase a new Cisco switch, turn it on, and connect to its console port. You then run the following command:
For each statement about the output, select True or False.
Note: You will receive partial credit for each correct selection.
Answer:
Explanation:
Explanation:
* The two interfaces are administratively shut down:
* False: The output does not show any "shutdown" command under the interfaces, which would indicate that they are administratively shut down. Therefore, they are likely in their default state, which is administratively up.
* The two interfaces have default IP addresses assigned:
* False: The output does not show any IP address configuration. In the default state, interfaces do not have IP addresses assigned unless explicitly configured.
* The two interfaces can communicate over Layer 2:
* True: By default, interfaces on a switch are Layer 2 interfaces capable of forwarding Ethernet frames. As there is no configuration provided that changes this, it can be assumed they can communicate over Layer 2.
* Interface Status: The absence of the "shutdown" command means the interfaces are not administratively shut down.
* IP Address Assignment: There is no evidence in the output that IP addresses have been assigned to the interfaces, which would typically be shown as "ip address" entries.
* Layer 2 Communication: Switch interfaces in their default state operate at Layer 2, enabling them to forward Ethernet frames and participate in Layer 2 communication.
References:
* Cisco IOS Interface Configuration: Cisco Interface Configuration
* Understanding Cisco Switch Interfaces: Cisco Switch Interfaces
NEW QUESTION # 26
Which standard contains the specifications for Wi-Fi networks?
- A. IEEE 802.3
- B. EIA/TIA 568A
- C. LTE
- D. IEEE 802.11
- E. GSM
Answer: D
Explanation:
The IEEE 802.11 standard contains the specifications for Wi-Fi networks. It is a set of media access control (MAC) and physical layer (PHY) specifications for implementing wireless local area network (WLAN) computer communication in various frequencies, including but not limited to 2.4 GHz, 5 GHz, and 6 GHz1. This standard is maintained by the Institute of Electrical and Electronics Engineers (IEEE) and is commonly referred to as Wi-Fi. The standard has evolved over time to include several amendments that improve speed, range, and reliability of wireless networks.
Reference: =
* The Most Common Wi-Fi Standards and Types, Explained
* 802.11 Standards Explained: 802.11ax, 802.11ac, 802.11b/g/n, 802.11a
* Wi-Fi Standards Explained - GeeksforGeeks
NEW QUESTION # 27
Which wireless security option uses a pre-shared key to authenticate clients?
- A. WPA2-Personal
- B. 802.1q
- C. WPA2-Enterprise
- D. 802.1x
Answer: A
Explanation:
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 connect1.
Reference: =
* 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.
Reference:
* Cisco Documentation on WPA2 Security: Cisco WPA2
* Understanding Wireless Security: Wireless Security Guide
NEW QUESTION # 28
A user reports that a company website is not available. The help desk technician issues a tracert command to determine if the server hosting the website is reachable over the network. The output of the command is shown as follows:
What can you tell from the command output?
- A. The server with the address 192.168.1.10 is reachable over the network.
- B. The server address 192.168.1.10 is being blocked by a firewall on the router at hop 3.
- C. The router at hop 3 is not forwarding packets to the IP address 192.168.1.10.
- D. Requests to the web server at 192.168.1.10 are being delayed and time out.
Answer: A
Explanation:
The tracert command output shows the path taken to reach the destination IP address, 192.168.1.10. The command output indicates:
*Hops 1 and 2 are successfully reached.
*Hop 3 times out, meaning the router at hop 3 did not respond to the tracert request. However, this does not necessarily indicate a problem with forwarding packets, as some routers may be configured to block or not respond to ICMP requests.
*Hops 4 and 5 are successfully reached, with hop 5 being the destination IP 192.168.1.10, indicating that the server is reachable.
Thus, the correct answer is C. The server with the address 192.168.1.10 is reachable over the network.
References :=
*Cisco Traceroute Command
*Understanding Traceroute
The tracert command output indicates that the server with the address 192.168.1.10 is reachable over the network. The asterisk (*) at hop 3 suggests that the probe sent to that hop did not return a response, which could be due to a variety of reasons such as a firewall blocking ICMP packets or the router at that hop being configured not to respond to ICMP requests. However, since the subsequent hops (4 and 5) are showing response times, it means that the packets are indeed getting through and the server is reachable12.
References :=
*How to Use Traceroute Command to Read Its Results
*How to Use the Tracert Command in Windows
NEW QUESTION # 29
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.
Answer:
Explanation:
Explanation:
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.
* Factor: Possession
* Explanation: This factor relates to something you have, such as a device that receives a security code.
* Holding your phone to your face to be recognized.
* Factor: Inference (typically referred to as Inherence or Biometric)
* Explanation: This factor relates to something you are, such as biometric authentication like facial recognition.
* Specifying your username and password to log on to a service.
* Factor: Knowledge
* Explanation: This factor relates to something you know, such as a username and password.
* 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
NEW QUESTION # 30
Which two pieces of information should you include when you initially create a support ticket? (Choose 2.)
- A. The actions taken to resolve the fault
- B. The description of the top-down fault-finding procedure
- C. Details about the computers connected to the network
- D. A description of the conditions when the fault occurs
- E. A detailed description of the fault
Answer: D,E
Explanation:
* Statement A: "A detailed description of the fault." This is essential for support staff to understand the nature of the problem and begin troubleshooting effectively.
* Statement C: "A description of the conditions when the fault occurs." This helps in reproducing the issue and identifying patterns that might indicate the cause of the fault.
* Statement B: "Details about the computers connected to the network." While useful, this is not as immediately critical as understanding the fault itself and the conditions under which it occurs.
* Statement D: "The actions taken to resolve the fault." This is important but typically follows the initial report.
* Statement E: "The description of the top-down fault-finding procedure." This is more of a troubleshooting methodology than information typically included in an initial support ticket.
References:
* Best Practices for Submitting Support Tickets: Support Ticket Guidelines
NEW QUESTION # 31
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