Which of the following is most closely associated with having a leased line to a public cloud provider?
A. VPN
B. Direct Connect
C. Internet gateway
D. Private cloud
Show Answer
Correct Answer: B
Explanation: A leased line to a public cloud provider refers to a dedicated private network connection rather than connectivity over the public internet. Services such as AWS Direct Connect (and analogous offerings like Azure ExpressRoute or Google Cloud Interconnect) provide this dedicated connection. A VPN uses the internet, an internet gateway enables internet access for cloud resources, and a private cloud is a deployment model rather than a leased-line service.
Question 101
A company is concerned that the public can use network wall jacks in publicly available conference rooms to access company servers. Which of the following is the best way to mitigate the vulnerability?
A. Create a trusted zone.
B. Disable unused services.
C. Use MAC filtering.
D. Implement 802.1X.
Show Answer
Correct Answer: D
Explanation: Implement 802.1X port-based network access control so devices connected to conference-room wall jacks must authenticate before gaining access to the company network and servers.
Question 102
Which of the following record types does an IP-to-name lookup use in DNS?
A. NS
B. PTR
C. A
D. CNAME
Show Answer
Correct Answer: B
Explanation: A reverse DNS lookup maps an IP address to a hostname using a PTR (Pointer) record. An A record maps a hostname to an IPv4 address, NS identifies authoritative name servers, and CNAME provides an alias to another hostname.
Question 102
A network administrator wants an automatic alert to be sent when a switch’s link status changes, administered through SNMP. Which of the following SNMP technologies will allow for this alert?
A. Trap
B. Object identifier
C. String
D. MIB
Show Answer
Correct Answer: A
Explanation: An SNMP trap is an unsolicited notification sent by a managed device to an SNMP manager when an event occurs, such as a switch link changing status.
Question 103
A technician configures a new printer and places it on the network. Which of the following is the best way to ensure the printer will always keep the same IP configuration?
A. Add a new scope.
B. Place an exclusion.
C. Extend the lease time.
D. Create a reservation.
Show Answer
Correct Answer: D
Explanation: A DHCP reservation binds the printer's MAC address to a specific IP address so it consistently receives the same IP configuration. A new scope creates a different address pool, an exclusion only prevents DHCP from assigning certain addresses, and extending the lease time does not guarantee the address will never change.
Question 103
A media company is implementing a global streaming service. Which of the following should the company apply to each regional point of presence in order to comply with local laws?
A. ACL
B. Port security
C. Key management
D. Content Altering
Show Answer
Correct Answer: D
Explanation: Content altering or filtering at each regional point of presence can restrict or modify content to meet that region’s legal requirements. ACLs and port security control network access, while key management handles encryption keys.
Question 104
Which of the following stages of the troubleshooting methodology involves considering multiple approaches?
A. Verify full functionality.
B. Implement the solution.
C. Document the findings and actions.
D. Establish a theory of probable cause.
Show Answer
Correct Answer: D
Explanation: In the CompTIA troubleshooting methodology, 'Establish a theory of probable cause' is the stage where you consider multiple possible explanations for the issue, including questioning the obvious. Brainstorming and evaluating different potential causes occurs before testing the theory and implementing a solution.
Question 104
Employees report that the network is slow. The network engineer thinks the performance issue is with an upstream router. Which of the following tools should the engineer use to determine the location of the issue?
A. nslookup and dig
B. Nmap and speed tester
C. traced and ping
D. tcpdump and protocol analyzer
Show Answer
Correct Answer: C
Explanation: Traceroute (or tracert) shows the network hops to the destination and their response times, helping identify where along the route latency or packet loss begins. Ping can then test connectivity and response time to a particular hop. Option C appears to mean traceroute and ping.
Question 105
A network technician is configuring the company's network 100Mbps port Layer 2 switches. The technician wants increased throughput for the uplinks between switches. The technician connects multiple redundant links between the switches. Which of the following should the technician configure?
A. Spanning Tree Protocol
B. Switch Virtual Interfaces
C. Native VLAN
D. First Hop Redundancy Protocol
Show Answer
Correct Answer: A
Explanation: The intended technology for increasing throughput across multiple redundant switch links would normally be link aggregation (EtherChannel/LACP), but that option is not provided. Of the available choices, Spanning Tree Protocol is the only relevant Layer 2 feature for redundant inter-switch links because it prevents switching loops. The other options (SVIs, Native VLAN, and FHRP) do not increase inter-switch uplink throughput or manage redundant Layer 2 links.
Question 105
A network technician implements a switch with multiple VLANs. Which of the following items should the technician configure to ensure that clients can communicate with clients in other VLANs?
A. VPC
B. VXLAN
C. ACL
D. SVI
Show Answer
Correct Answer: D
Explanation: A switched virtual interface (SVI) provides a Layer 3 interface and default gateway for a VLAN. Configuring SVIs on a multilayer switch enables routing between VLANs so their clients can communicate.
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