Question #1
A systems administrator needs to improve WiFi performance in a densely populated office tower and use the latest standard. There is a mix of devices that use
2.4 GHz and 5 GHz. Which of the following should the systems administrator select to meet this requirement?
A. 802.11ac
B. 802.11ax
C. 802.11g
D. 802.11n
Correct Answer: B
Question # 2
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?
A. Spanning Tree Protocol
B. Neighbor Discovery Protocol
C. Link Aggregation Control Protocol
D. Address Resolution Protocol
Correct Answer: B
Question #3
A new cabling certification is being requested every time a network technician rebuilds one end of a Cat 6 (vendor-certified) cable to create a
crossover connection that is used to connect switches. Which of the following would address this issue by allowing the use of the original cable?
A. CSMA/CD
B. LACP
C. PoE+
D. MDIX
Correct Answer: D
Question #4
A technician is installing a high-density wireless network and wants to use an available frequency that supports the maximum number of channels to reduce interference. Which of the following standard 802.11 frequency ranges should the technician look for while reviewing WAP specifications?
A. 2.4GHz
B. 5GHz
C. 6GHz
D. 900MHz
Correct Answer: B
Question #5
The network administrator is informed that a user’s email password is frequently hacked by brute-force programs. Which of the following policies should the network administrator implements to BEST mitigate this issue? (Choose two.)
A. Captive portal
B. Two-factor authentication
C. Complex passwords
D. Geofencing
E. Role-based access
F. Explicit deny
Correct Answer: BC
Question 6
Which of the following BEST describes a network appliance that warns of unapproved devices that are accessing the network?
A. Firewall
B. AP
C. Proxy server
D. IDS
Correct Answer: D
Question # 7
A network technician is reviewing the interface counters on a router interface. The technician is attempting to confirm a cable issue. Given the following information:
Which of the following metrics confirms there is a cabling issue?
A. Last cleared
B. Number of packets output
C. CRCs
D. Giants
E. Multicasts
Correct Answer: C
Question 8
A branch of a company recently switched to a new ISP. The network engineer was given a new IP range to assign. The ISP assigned 196.26.4.0/26,
and the branch gateway router now has the following configurations on the interface that peers to the ISP:
The network engineer observes that all users have lost Internet connectivity. Which of the following describes the issue?
A. The incorrect subnet mask was configured
B. The incorrect gateway was configured
C. The incorrect IP address was configured
D. The incorrect interface was configured
Correct Answer: B
Question 9
Which of the following service models would MOST likely be used to replace on-premises servers with a cloud solution?
A. PaaS
B. IaaS
C. SaaS
D. Disaster recovery as a Service (DRaaS)
Correct Answer: B
Question 10
SIMULATION –
You are tasked with verifying the following requirements are met in order to ensure network security. Requirements:
✑ Datacenter
– Ensure network is subnetted to allow all devices to communicate properly while minimizing address space usage
– Provide a dedicated server to resolve IP addresses and hostnames correctly and handle port 53 traffic
✑ Building A
– Ensure network is subnetted to allow all devices to communicate properly while minimizing address space usage
– Provide devices to support 5 additional different office users
– Add an additional mobile user
– Replace the Telnet server with a more secure solution
✑ Screened subnet
– Ensure network is subnetted to allow all devices to communicate properly while minimizing address space usage
– Provide a server to handle external 80/443 traffic
– Provide a server to handle port 20/21 traffic
INSTRUCTIONS –
Drag and drop objects onto the appropriate locations. Objects can be used multiple times and not all placeholders need to be filled. Available objects are located in both the Servers and Devices tabs of the Drag & Drop menu.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.
Correct Answer: See explanation below. Top left subnet 206.208.134.0/28 “€ג Top right subnet 10.72.63.0/28 “€ג
Bottom subnet 192.168.11.0/28 “€ג
Screened Subnet devices ג€” Web server, FTP server
Building A devices ג€” SSH server top left, workstations on all 5 on the right, laptop on bottom left DataCenter devices ג€” DNS server.
Question 11
The following configuration is applied to a DHCP server connected to a VPN concentrator:
There are 300 non-concurrent sales representatives who log in for one hour a day to upload reports, and 252 of these representatives are able to connect to the VPN without any Issues. The remaining sales representatives cannot connect to the VPN over the course of the day. Which of the following can be
done to resolve the issue without utilizing additional resources?
A. Decrease the lease duration
B. Reboot the DHCP server
C. Install a new VPN concentrator
D. Configure a new router
Correct Answer: A
Question #12
An engineer notices some late collisions on a half-duplex link. The engineer verifies that the devices on both ends of the connection are configured for half duplex.
Which of the following is the MOST likely cause of this issue?
A. The link is improperly terminated
B. One of the devices is misconfigured
C. The cable length is excessive
D. One of the devices has a hardware issue
Correct Answer: C
Question #13
A technician is troubleshooting a wireless connectivity issue in a small office located in a high-rise building. Several APs are mounted in this office. The users report that the network connections frequently disconnect and reconnect throughout the day. Which of the following is the MOST likely cause of this issue?
A. The AP association time is set too low
B. EIRP needs to be boosted
C. Channel overlap is occurring
D. The RSSI is misreported
Correct Answer: A
Question #14
Several WIFI users are reporting the inability to connect to the network. WLAN users on the guest network are able to access all network resources without any performance issues. The following table summarizes the findings after a site survey of the area in question:
Which of the following should a wireless technician do NEXT to troubleshoot this issue?
A. Reconfigure the channels to reduce overlap
B. Replace the omni antennas with directional antennas
C. Update the SSIDs on all the APs
D. Decrease power in AP 3 and AP 4
Correct Answer: A
Question #15
A technician is assisting a user who cannot connect to a network resource. The technician first checks for a link light. According to troubleshooting methodology, this is an example of:
A. using a bottom-to-top approach.
B. establishing a plan of action.
C. documenting a finding.
D. questioning the obvious.
Correct Answer: D
Question #16
Which of the following connector types would have the MOST flexibility?
A. SFP
B. BNC
C. LC
D. RJ45
Correct Answer: A
Question #17
A store owner would like to have secure wireless access available for both business equipment and patron use. Which of the following features should be configured to allow different wireless access through the same equipment?
A. MIMO
B. TKIP
C. LTE
D. SSID
Correct Answer: D
Question #18
A workstation is configured with the following network details:
Software on the workstation needs to send a query to the local subnet broadcast address. To which of the following addresses should the software be configured to send the query?
A. 10.1.2.0
B. 10.1.2.1
C. 10.1.2.23
D. 10.1.2.255
E. 10.1.2.31
Correct Answer: E
Question #19
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
Question #20
An IT technician suspects a break in one of the uplinks that provides connectivity to the core switch. Which of the following command-line tools should the technician use to determine where the incident is occurring?
A. nslookup
B. show config
C. netstat
D. show interface
E. show counters
Correct Answer: C