Practice Free N10-008 Exam Online Questions
Question #151
A network technician needs to install security updates on several switches on me company’s network. The management team wants this completed as quickly and efficiently as possible.
Which of the following should the technician do to perform the updates?
- A . Upload the security update onto each switch using a terminal emulator and a console cable.
- B . Configure a TFTP server. SSH into each device, and perform the update.
- C . Replace each old switch with new switches that have the updates already performed.
- D . Connect a USB memory stick to each switch and perform the update.
Correct Answer: B
B
Explanation:
The best option to install security updates on multiple switches is to use a TFTP (Trivial File Transfer Protocol) server and SSH (Secure Shell) connections. A TFTP server is a simple and lightweight file server that can host the update files and transfer them to the switches over the network. SSH is a secure and encrypted protocol that can be used to remotely access and configure the switches. The technician can use SSH to log into each switch, download the update file from the TFTP server, and apply the update. This method is faster and more efficient than using a terminal emulator and a console cable, which would require physical access to each switch and a serial connection. It is also more cost-effective and less disruptive than replacing the switches with new ones. Using a USB memory stick is also possible, but it would still require physical access to each switch and a USB port, which may not be available on all models.
Reference:
[CompTIA Network+ N10-008 Certification Study Guide], Chapter 5: Network Operations, Section 5.4: Firmware Updates, pp. 283-284
[Professor Messer’s CompTIA N10-008 Network+ Course Notes], Section 5.4: Firmware Updates, p. 71
[Professor Messer’s CompTIA N10-008 Network+ Training Course], Video 5.4: Firmware Updates,
9:07 minutes
B
Explanation:
The best option to install security updates on multiple switches is to use a TFTP (Trivial File Transfer Protocol) server and SSH (Secure Shell) connections. A TFTP server is a simple and lightweight file server that can host the update files and transfer them to the switches over the network. SSH is a secure and encrypted protocol that can be used to remotely access and configure the switches. The technician can use SSH to log into each switch, download the update file from the TFTP server, and apply the update. This method is faster and more efficient than using a terminal emulator and a console cable, which would require physical access to each switch and a serial connection. It is also more cost-effective and less disruptive than replacing the switches with new ones. Using a USB memory stick is also possible, but it would still require physical access to each switch and a USB port, which may not be available on all models.
Reference:
[CompTIA Network+ N10-008 Certification Study Guide], Chapter 5: Network Operations, Section 5.4: Firmware Updates, pp. 283-284
[Professor Messer’s CompTIA N10-008 Network+ Course Notes], Section 5.4: Firmware Updates, p. 71
[Professor Messer’s CompTIA N10-008 Network+ Training Course], Video 5.4: Firmware Updates,
9:07 minutes
Question #152
Which of the following devices is found in the middle tier of a three-tier network architecture?
- A . Router
- B . Multilayer switch
- C . Access switch
- D . Firewall
Correct Answer: B
B
Explanation:
In a three-tier network architecture, the middle tier is typically where the distribution layer resides, which connects network services to the access layer below and the core layer above. A multilayer switch operates at this level, providing routing, switching, and traffic management between subnets and VLANs.
B
Explanation:
In a three-tier network architecture, the middle tier is typically where the distribution layer resides, which connects network services to the access layer below and the core layer above. A multilayer switch operates at this level, providing routing, switching, and traffic management between subnets and VLANs.
Question #153
Which of the following architectures is used for FTP?
- A . Client-server
- B . Service-oriented
- C . Connection-oriented
- D . Data-centric
Correct Answer: A
A
Explanation:
FTP (File Transfer Protocol) is a client-server based protocol, meaning that the two computers involved communicate with each other in a request-response pattern. The client sends a request to the server and the server responds with the requested data. This type of architecture is known as client-server, and it is used for many different types of applications, including FTP. Other architectures, such as service-oriented, connection-oriented, and data-centric, are not used for FTP.
A
Explanation:
FTP (File Transfer Protocol) is a client-server based protocol, meaning that the two computers involved communicate with each other in a request-response pattern. The client sends a request to the server and the server responds with the requested data. This type of architecture is known as client-server, and it is used for many different types of applications, including FTP. Other architectures, such as service-oriented, connection-oriented, and data-centric, are not used for FTP.
Question #154
Which of the following situations would require an engineer to configure subinterfaces?
- A . In a router-on-a-stick deployment with multiple VLANs
- B . In order to enable inter-VLAN routing on a multilayer switch
- C . When configuring VLAN trunk links between switches
- D . After connecting a router that does not support 802.1Q VLAN tags
Correct Answer: A
A
Explanation:
A router-on-a-stick is a configuration that allows a single router interface to route traffic between multiple VLANs on a network1. A router-on-a-stick requires sub-interfaces to be configured on the router interface, one for each VLAN. Each sub-interface is assigned a VLAN ID and an IP address that belongs to the corresponding VLAN subnet. The router interface is connected to a switch port that is configured as a trunk port, which allows traffic from multiple VLANs to pass through. The router then performs inter-VLAN routing by forwarding packets between the sub-interfaces based on their destination IP addresses.
Inter-VLAN routing is a process that allows devices on different VLANs to communicate with each other. Inter-VLAN routing can be performed by a router-on-a-stick configuration, as explained above, or by a multilayer switch that has routing capabilities. A multilayer switch does not require sub-interfaces to be configured for inter-VLAN routing; instead, it uses switch virtual interfaces (SVIs) that are associated with each VLAN. An SVI is a logical interface that represents a VLAN on a switch and has an IP address that belongs to the VLAN subnet. The switch then performs inter-VLAN routing by forwarding packets between the SVIs based on their destination IP addresses.
VLAN trunking is a method that allows traffic from multiple VLANs to be carried over a single link between switches or routers. VLAN trunking requires the use of a tagging protocol, such as 802.1Q, that adds a header to each frame that identifies its VLAN ID. VLAN trunking does not require sub-interfaces to be configured on the switches or routers; instead, it uses trunk ports that are configured to allow or deny traffic from specific VLANs. The switches or routers then forward packets between the trunk ports based on their VLAN IDs.
A
Explanation:
A router-on-a-stick is a configuration that allows a single router interface to route traffic between multiple VLANs on a network1. A router-on-a-stick requires sub-interfaces to be configured on the router interface, one for each VLAN. Each sub-interface is assigned a VLAN ID and an IP address that belongs to the corresponding VLAN subnet. The router interface is connected to a switch port that is configured as a trunk port, which allows traffic from multiple VLANs to pass through. The router then performs inter-VLAN routing by forwarding packets between the sub-interfaces based on their destination IP addresses.
Inter-VLAN routing is a process that allows devices on different VLANs to communicate with each other. Inter-VLAN routing can be performed by a router-on-a-stick configuration, as explained above, or by a multilayer switch that has routing capabilities. A multilayer switch does not require sub-interfaces to be configured for inter-VLAN routing; instead, it uses switch virtual interfaces (SVIs) that are associated with each VLAN. An SVI is a logical interface that represents a VLAN on a switch and has an IP address that belongs to the VLAN subnet. The switch then performs inter-VLAN routing by forwarding packets between the SVIs based on their destination IP addresses.
VLAN trunking is a method that allows traffic from multiple VLANs to be carried over a single link between switches or routers. VLAN trunking requires the use of a tagging protocol, such as 802.1Q, that adds a header to each frame that identifies its VLAN ID. VLAN trunking does not require sub-interfaces to be configured on the switches or routers; instead, it uses trunk ports that are configured to allow or deny traffic from specific VLANs. The switches or routers then forward packets between the trunk ports based on their VLAN IDs.
Question #155
An application is not working. When the log files are reviewed, the application continuously tries to reach the following destination:
Which of the following is most likely associated with this IP address?
- A . APIPA
- B . Default gateway
- C . Link local
- D . Loopback
Correct Answer: D
D
Explanation:
The IP address ::1/128 is the loopback address of the local host in IPv6, which is the equivalent of the 127.0.0.1 in IPv4. The loopback address is a virtual interface that loops all traffic back to itself, the
local host. The loopback address is used for testing and troubleshooting purposes, such as checking the connectivity and configuration of the network stack. If an application tries to reach the loopback address, it means that it is not communicating with any external network or server, but only with itself.
The other options are not correct because they are not associated with the IP address ::1/128. They are:
APIPA. APIPA stands for Automatic Private IP Addressing, which is a feature that allows a device to assign itself a private IPv4 address in the range of 169.254.0.0/16 when no DHCP server is available. APIPA does not apply to IPv6 addresses, and it is not related to the loopback address.
Default gateway. The default gateway is the IP address of the router or device that connects a local network to other networks. The default gateway is usually the first or last usable IP address in a subnet, and it is not the same as the loopback address.
Link local. Link local addresses are IPv6 addresses that are used for communication within a single network segment or link. Link local addresses have the prefix fe80::/10, and they are not routable or reachable from other networks. Link local addresses are not the same as the loopback address. Reference
1: Loopback Address – ::1/128 – ipUpTime.net
2: Network+ (Plus) Certification | CompTIA IT Certifications
3: Reserved IP addresses – Wikipedia
D
Explanation:
The IP address ::1/128 is the loopback address of the local host in IPv6, which is the equivalent of the 127.0.0.1 in IPv4. The loopback address is a virtual interface that loops all traffic back to itself, the
local host. The loopback address is used for testing and troubleshooting purposes, such as checking the connectivity and configuration of the network stack. If an application tries to reach the loopback address, it means that it is not communicating with any external network or server, but only with itself.
The other options are not correct because they are not associated with the IP address ::1/128. They are:
APIPA. APIPA stands for Automatic Private IP Addressing, which is a feature that allows a device to assign itself a private IPv4 address in the range of 169.254.0.0/16 when no DHCP server is available. APIPA does not apply to IPv6 addresses, and it is not related to the loopback address.
Default gateway. The default gateway is the IP address of the router or device that connects a local network to other networks. The default gateway is usually the first or last usable IP address in a subnet, and it is not the same as the loopback address.
Link local. Link local addresses are IPv6 addresses that are used for communication within a single network segment or link. Link local addresses have the prefix fe80::/10, and they are not routable or reachable from other networks. Link local addresses are not the same as the loopback address. Reference
1: Loopback Address – ::1/128 – ipUpTime.net
2: Network+ (Plus) Certification | CompTIA IT Certifications
3: Reserved IP addresses – Wikipedia
Question #156
A network administrator is configuring a database server and would like to ensure the database engine is listening on a certain port.
Which of the following commands should the administrator use to accomplish this goal?
- A . nslookup
- B . netstat -a
- C . ipconfig /a
- D . arp -a
Correct Answer: B
B
Explanation:
netstat -a is a command that displays information about active TCP connections and listening ports on a system. A network administrator can use netstat -a to check if the database engine is listening on a certain port, as well as verify if there are any connections established to or from that port.
Reference: https://www.comptia.org/blog/what-is-netstat
B
Explanation:
netstat -a is a command that displays information about active TCP connections and listening ports on a system. A network administrator can use netstat -a to check if the database engine is listening on a certain port, as well as verify if there are any connections established to or from that port.
Reference: https://www.comptia.org/blog/what-is-netstat
Question #157
Which of the following types of data center architectures will MOST likely be used in a large SDN and can be extended beyond the data center?
- A . iSCSI
- B . FCoE
- C . Three-tiered network
- D . Spine and leaf
- E . Top-of-rack switching
Correct Answer: D
D
Explanation:
The type of data center architecture that will most likely be used in a large SDN and can be extended beyond the data center is spine and leaf. Spine and leaf is a network topology that consists of two layers of switches: spine switches and leaf switches. Spine switches are interconnected to each other and form the core of the network, while leaf switches are connected to each spine switch and form the access layer of the network. Spine and leaf topology provides high scalability, performance, and flexibility for data center networks, especially for SDN (Software Defined Networking) environments that require dynamic traffic flows and virtualization.
Reference: CompTIA Network+ N10-008 Certification Study Guide, page 16; The Official CompTIA Network+ Student Guide (Exam N10-008), page 1-9.
D
Explanation:
The type of data center architecture that will most likely be used in a large SDN and can be extended beyond the data center is spine and leaf. Spine and leaf is a network topology that consists of two layers of switches: spine switches and leaf switches. Spine switches are interconnected to each other and form the core of the network, while leaf switches are connected to each spine switch and form the access layer of the network. Spine and leaf topology provides high scalability, performance, and flexibility for data center networks, especially for SDN (Software Defined Networking) environments that require dynamic traffic flows and virtualization.
Reference: CompTIA Network+ N10-008 Certification Study Guide, page 16; The Official CompTIA Network+ Student Guide (Exam N10-008), page 1-9.
Question #158
A technician notices that equipment is being moved around and misplaced in the server room, even though the room has locked doors and cabinets.
Which of the following would be the BEST solution to identify who is responsible?
- A . Install motion detection
- B . Install cameras.
- C . Install tamper detection.
- D . Hire a security guard.
Correct Answer: B
B
Explanation:
Installing cameras in the server room is the best solution to identify who is responsible for the equipment being moved and misplaced. Cameras provide a way to monitor the server room in real time and can be used to identify suspicious activity. Additionally, they provide a way to review past activity and allow you to review footage to determine who may be responsible for the misplacement of equipment.
B
Explanation:
Installing cameras in the server room is the best solution to identify who is responsible for the equipment being moved and misplaced. Cameras provide a way to monitor the server room in real time and can be used to identify suspicious activity. Additionally, they provide a way to review past activity and allow you to review footage to determine who may be responsible for the misplacement of equipment.
Question #159
A network is secured and is only accessible via TLS and IPSec VPNs.
Which of the following would need to be present to allow a user to access network resources on a laptop without logging in to the VPN application?
- A . Site-to-site
- B . Secure Shell
- C . In-band management
- D . Remote desktop connection
Correct Answer: A
A
Explanation:
A site-to-site VPN is a type of VPN that connects two or more networks over the Internet using a
secure tunnel. A site-to-site VPN allows users to access network resources on a laptop without logging in to the VPN application, as long as the laptop is connected to one of the networks in the VPN. A site-to-site VPN is transparent to the users and does not require any additional software or configuration on the client devices.
Reference: Network+ Study Guide Objective 3.4: Explain the purposes and use cases for VPNs.
A
Explanation:
A site-to-site VPN is a type of VPN that connects two or more networks over the Internet using a
secure tunnel. A site-to-site VPN allows users to access network resources on a laptop without logging in to the VPN application, as long as the laptop is connected to one of the networks in the VPN. A site-to-site VPN is transparent to the users and does not require any additional software or configuration on the client devices.
Reference: Network+ Study Guide Objective 3.4: Explain the purposes and use cases for VPNs.
Question #160
Which of the following OSI layers is ICMP a part of?
- A . Application
- B . Session
- C . Network
- D . Transport
Correct Answer: C
C
Explanation:
ICMP, or Internet Control Message Protocol, is part of the Network layer (Layer 3) in the OSI model. It operates at a level that handles the communication between different networks. ICMP is used for sending error messages and operational information indicating the status of the network
C
Explanation:
ICMP, or Internet Control Message Protocol, is part of the Network layer (Layer 3) in the OSI model. It operates at a level that handles the communication between different networks. ICMP is used for sending error messages and operational information indicating the status of the network