QUESTION 21
An administrator needs to configure an IoT device with a /21 subnet mask, but the device will only accept dotted decimal notation. Which of the following subnet masks should the administrator use?

A. 255.255.224.0
B. 255.255.240.0
C. 255.255.248.0
D. 255.255.252.0

Correct Answer: A

QUESTION 22
A network administrator is creating a copy of network traffic for later analysis. The flow of traffic should not be changed. Which of the following will most directly accomplish this task?

A. SPAN port
B. Network tap
C. Protocol analyzer
D. Link aggregation

Correct Answer: B

QUESTION 23
A network administrator needs to create a way to redirect a network resource that has been on the local network but is now hosted as a SaaS solution. Which of the following records should be used to accomplish the task?

A. TXT
B. AAA
C. PTR
D. CNAME

Correct Answer: D

QUESTION 24
Which of the following will a router prioritize first in the route selection process?

A. Prefix length
B. Metric
C. Administrative distance
D. Default route

Correct Answer: C

QUESTION 25
A network engineer configures an application server so that it automatically adjusts resource allocation as demand changes. This server will host a new application and demand is not predictable. Which of the following concepts does this scenario demonstrate?

A. Scalability
B. Software as a service
C. Hybrid cloud
D. Elasticity

Correct Answer: D

QUESTION 26
Which of the following record types does an IP-to-name lookup use in DNS?

A. NS
B. PTR
C. A
D. CNAME

Correct Answer: B

QUESTION 27
A network technician is installing a new switch that does not support STP at the access layer of a network The technician wants a redundant connection to the distribution switch. Which of the following should the technician use?

A. Link aggregation
B. Subinterfaces
C. Switch virtual interfaces
D. Half-duplex connections

Correct Answer: A

QUESTION 28
A user submits an escalated ticket regarding failed logins on their laptop. The user states that the time displayed on the laptop is incorrect. An administrator thinks the issue is related to the NTP. Which of the following should the administrator do next?

A. Create a plan of action.
B. Implement a solution.
C. Identify the problem.
D. Test the theory.

Correct Answer: D

QUESTION 29
A network technician is requesting a fiber patch cord with a connector that is round and twists to install. Which of the following is the proper name of this connector type?

A. ST
B. BNC
C. SC
D. LC

Correct Answer: A

QUESTION 30
Which of the following dynamic routing protocols is used on the internet?

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

Correct Answer: B

QUESTION 31
Which of the following protocols is commonly associated with TCP port 443?

A. Telnet
B. SMTP
C. HTTPS
D. SNMP

Correct Answer: C

QUESTION 32
Which of the following is an example of a split-tunnel VPN?

A. Only public resources are accessed through the user’s internet connection.
B. Encrypted resources are accessed through separate tunnels.
C. All corporate and public resources are accessed through routing to on-site servers.
D. ACLs are used to balance network traffic through different connections.

Correct Answer: A

QUESTION 33
Which of the following tools uses ICMP to help determine whether a network host is reachable?

A. tcpdump
B. netstat
C. nslookup
D. ping

Correct Answer: D

QUESTION 34
A newly opened retail shop uses a combination of new tablets, PCs, printers, and legacy card readers. Which of the following wireless encryption types is the most secure and compatible?

A. WPA3
B. WPA2
C. WPA2/WPA3 mixed mode
D. WPA/WPA2 mixed mode

Correct Answer: C

QUESTION 35
A company recently implemented a videoconferencing system that utilizes large amounts of bandwidth Users start reporting slow internet speeds and an overall decrease in network performance. Which of the following are most likely the causes of the network performance issues? (Select two).

A. DNS misconfiguration
B. Inadequate network security
C. Malware or a virus
D. Outdated software
E. Incorrect QoS settings
F. Network congestion

Correct Answer: EF

QUESTION 36
Which of the following devices can operate in multiple layers of the OSI model?

A. Hub
B. Switch
C. Transceiver
D. Modem

Correct Answer: B

QUESTION 37
After extremely high temperatures cause a power outage, the servers automatically shut down, even though the UPS for the servers still have hours of battery life. Which of the following should a technician recommend?

A. Include backup power for air-conditioning units.
B. Configure door locks to automatically lock during power outages.
C. Increase UPS battery size.
D. Add an IoT-enabled thermostat.

Correct Answer: A

QUESTION 38
Which of the following is most closely associated with a dedicated link to a cloud environment and may not include encryption?

A. Direct Connect
B. Internet gateway
C. Captive portal
D. VPN

Correct Answer: A

QUESTION 39
Which of the following involves an attacker traversing from one part of a network to another part that should be inaccessible?

A. MAC flooding
B. DNS poisoning
C. VLAN hopping
D. ARP spoofing

Correct Answer: C

QUESTION 40
A network technician needs to use a private Class A RFC1918 addressing scheme for user laptops on the company’s network. Which of the following subnets should the technician choose?

A. 10.1.1.0/24
B. 100.1.1.0/24
C. 172.16.1.0/24
D. 192.168.1.0/24

Correct Answer: A