Question 6 of 833

SIMULATION -

You have been tasked with setting up a wireless network in an office. The network will consist of 3 Access Points and a single switch. The network must meet the following parameters:

✑ The SSIDs need to be configured as CorpNet with a key of S3cr3t!

✑ The wireless signals should not interfere with each other

✑ The subnet the Access Points and switch are on should only support 30 devices maximum

✑ The Access Points should be configured to only support TKIP clients at a maximum speed

INSTRUCTONS -

Click on the wireless devices and review their information and adjust the settings of the access points to meet the given requirements.

If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.

    Correct Answer:

    To set up the wireless network in the office, follow these steps to meet the given requirements correctly. Here's how to configure each of the Access Points (AP1, AP2, and AP3) and the switch based on the information provided and general network setup principles for TKIP support, SSID configuration, and minimizing interference with wireless channels 1, 6, and 11. Let's break down the settings step by step for each device and address the subnet configuration as well to ensure we support 30 devices maximum with a subnet mask of /27, which allows for 32 IP addresses (including network and broadcast addresses): 1. **Subnet and IP Addresses: use /27 to support a maximum of 30 devices (actual usable IPs)**: - The default gateway for all APs (Access Points) is set to 192.168.1.1 and cannot be changed. - Switch IP address: 192.168.1.2 (as given in the scenario). - AP1 IP address: 192.168.1.3 (supports 30 devices acquired through /27 subnet mask which gives a range of 32 IP addresses, 30 usable). - AP2 IP address: 192.168.1.4 /27. - AP3 IP address: 192.168.1.5 /27. 2. **SSID Configuration**: - SSID (Service Set Identifier): Set to

Question 7 of 833

A network is experiencing a number of CRC errors during normal network communication. At which of the following layers of the OSI model will the administrator

MOST likely start to troubleshoot?

    Correct Answer: B

    A network experiencing CRC errors indicates issues at the Data Link Layer, which is Layer 2 of the OSI model. Cyclic Redundancy Check (CRC) is a method used for error-checking in frames, which are the protocol data units at Layer 2. Because CRC errors pertain to how data is formatted and transmitted over a network segment (often related to the error-detection data in the frame's trailer), it would be most appropriate to start troubleshooting at Layer 2.

Question 8 of 833

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.)

    Correct Answer: A, B

    Given the scenario where 100 users are experiencing slow or unresponsive desktops but the network metrics such as congestion, packet loss, and delay are within acceptable ranges, the issue is likely due to resource constraints on the VMs they are using. In such cases, the two most relevant metrics to examine would be CPU usage and memory. High CPU usage can cause performance bottlenecks as the processor struggles to handle the increased load from the VMs. Similarly, insufficient memory can result in paging or swapping, further degrading the performance of the virtual machines. Thus, monitoring CPU usage and memory will most accurately reveal the underlying performance issues in this context.

Question 9 of 833

Client devices cannot enter a network, and the network administrator determines the DHCP scope is exhausted. The administrator wants to avoid creating a new

DHCP pool. Which of the following can the administrator perform to resolve the issue?

    Correct Answer: D

    To resolve the issue of a DHCP scope being exhausted without creating a new DHCP pool, the administrator can reduce the lease time. By reducing the lease time, IP addresses that are no longer in use will be released and made available more quickly, thereby increasing the likelihood of new devices being able to obtain an IP address. This solution is effective without the need for additional hardware or structural changes to the network.

Question 10 of 833

An administrator is writing a script to periodically log the IPv6 and MAC addresses of all the devices on a network segment. Which of the following switch features will MOST likely be used to assist with this task?

    Correct Answer: B

    Neighbor Discovery Protocol (NDP) is used within IPv6 networks to discover other network devices and their link-layer addresses, which include both IPv6 and MAC addresses. This makes it the most suitable feature for an administrator writing a script to log these addresses periodically on a network segment. Other options, like Spanning Tree Protocol and Link Aggregation Control Protocol, do not serve the purpose of address discovery.