CompTIA N10-008 Online Practice Questions and Exam Preparation

CompTIA N10-008 Online Questions & Answers

• Question 161:

  A company is moving to a new building designed with a guest waiting area that has existing network ports. Which of the following practices would BEST secure the network?

  A. Ensure all guests sign an NDA.
  B. Disable unneeded switchports in the area.
  C. Lower the radio strength to reduce Wi-Fi coverage in the waiting area.
  D. Enable MAC filtering to block unknown hardware addresses.
  B. Disable unneeded switchports in the area.

  ---

  Explanation/Reference:

  One of the best practices to secure the network would be to disable unneeded switchports in the guest waiting area. This will prevent unauthorized users from connecting to the network through these ports. It's important to identify which switchports are not in use and disable them, as this will prevent unauthorized access to the network. Other practices such as ensuring all guests sign an NDA, lowering the radio strength to reduce Wi-Fi coverage in the waiting area and enabling MAC filtering to block unknown hardware addresses are not as effective in securing the network as disabling unneeded switchports. Enforcing an NDA with guests may not stop a malicious user from attempting to access the network, reducing the radio strength only limits the Wi-Fi coverage, and MAC filtering can be easily bypassed by hackers.

• Question 162:

  A client recently added 100 users who are using VMs. All users have since reported slow or unresponsive desktops. Reports show minimal network congestion, zero packet loss, and acceptable packet delay. Which of the following metrics will MOST accurately show the underlying performance issues? (Choose two.)

  A. CPU usage
  B. Memory
  C. Temperature
  D. Bandwidth
  E. Latency
  F. Jitter
  A. CPU usage
  B. Memory

  ---

  Explanation/Reference:

  CPU usage and Memory are the two metrics that will most accurately show the underlying performance issues in this scenario. To accurately show the underlying performance issues in this scenario, monitoring the CPU usage and memory will be most helpful. The slow or unresponsive desktops experienced by 100 users suggest a bottleneck on the VM host. Temperature, bandwidth, latency, and jitter are unlikely to be the cause of the problem, based on the reported network metrics.

• Question 163:

  During an annual review of policy documents, a company decided to adjust its recovery time frames. The company agreed that critical applications can be down for no more than six hours, and the acceptable amount of data loss is no more than two hours. Which of the following should be documented as the RPO?

  A. Two hours
  B. Four hours
  C. Six hours
  D. Eight hours
  A. Two hours

  ---

  Explanation/Reference:

  "RPO designates the variable amount of data that will be lost or will have to be re-entered during network downtime. RTO designates the amount of "real time" that can pass before the disruption begins to seriously and unacceptably impede the flow of normal business operations."

• Question 164:

  In a data center, data traffic that moves east-west is flowing between:

  A. the top-of-rack and distribution switches.
  B. the server and the cloud.
  C. the top-of-rack and core switches.
  D. top-of-rack switches.
  D. top-of-rack switches.

• Question 165:

  Which of the following routing protocols is hierarchal by nature and uses the router ID to control convergence?

  A. BGP
  B. OSPF
  C. EIGRP
  D. RIP
  B. OSPF

  ---

  Explanation/Reference:

  OSPF stands for Open Shortest Path First, which is a link-state routing protocol that is hierarchal by nature and uses the router ID to control convergence. OSPF divides a large network into areas, which are logical groupings of routers that share the same topology information. Each area has a unique identifier and a designated router that connects it to the backbone area (area 0). OSPF uses the router ID, which is a 32-bit number that uniquely identifies each router in the network, to establish adjacencies and exchange routing information. OSPF also uses the router ID to break ties when choosing the best path to a destination. OSPF converges faster than distance-vector routing protocols such as RIP and EIGRP, as it uses the Dijkstra algorithm to calculate the shortest path based on the link cost. BGP, on the other hand, is a path-vector routing protocol that is used to exchange routing information between autonomous systems on the Internet. BGP does not use the router ID to control convergence, but rather uses attributes such as AS path, local preference, and MED to select the best route. BGP is not hierarchal by nature, as it does not divide the network into areas, but rather uses prefixes and policies to control the routing behavior.

• Question 166:

  A network technician is selecting new network hardware, and availability is the main concern. Which of the following availability concepts should the technician consider?

  A. RTO
  B. MTTR
  C. MTBF
  D. RPO
  C. MTBF

• Question 167:

  Which of the following systems would MOST likely be found in a screened subnet?

  A. RADIUS
  B. FTP
  C. SQL
  D. LDAP
  B. FTP

  ---

  Explanation/Reference:

  DMZ - a permiter network that protects an organisations internal local area network from untrusted traffic. Typically this is a subnet where you will place all your public facing servers eg: email server, web server and file server.

• Question 168:

  Which of the following common agreements would a company most likely have an employee sign as a condition of employment?

  A. NDA
  B. ISP
  C. SLA
  D. MOU
  A. NDA

  ---

  Explanation/Reference:

  An NDA, or non-disclosure agreement, is a legal contract that binds an employee to keep certain information confidential and not share it with unauthorized parties. This information may include trade secrets, intellectual property, business strategies, customer data, or other sensitive or proprietary information that gives the company a competitive advantage. An NDA protects the company's interests and prevents the employee from disclosing or using the information for personal gain or malicious purposes1.

• Question 169:

  A company needs to be able to restore 100% of its data from any single day's backup. Which of the following backup types should the company use?

  A. Full
  B. Incremental
  C. snapshot
  D. Differential
  A. Full

• Question 170:

  Which of the following copper wire standards utilizes four pairs of wires to achieve Gigabit Ethernet speeds?

  A. 1000BASE-FX
  B. 1000BASE-T
  C. 1000BASE.LR
  D. 1000BASE-SX
  B. 1000BASE-T