604 practice questions with answers and explanations.
Which of the following steps of the troubleshooting methodology would most likely include checking through each level of the OSI model after the problem has been identified?
The correct answer is A. Option A: Establish a theory.
While troubleshooting a VoIP handset connection, a technician's laptop is able to successfully connect to network resources using the same port. The technician needs to identify the port on the switch. Which of the following should the technician use to determine the switch and port?
The correct answer is A. Option A: LLDP
A network administrator needs to set up a file server to allow user access. The organization uses DHCP to assign IP addresses. Which of the following is the best solution for the administrator to set up?
The correct answer is B. Option B: A reservation for the server based on the MAC address
Which of the following technologies are X.509 certificates most commonly associated with?
The correct answer is A. Option A: PKI
A network administrator wants to implement an authentication process for temporary access to an organization's network. Which of the following technologies would facilitate this process?
The correct answer is A. Option A: Captive portal
A user is unable to navigate to a website because the provided URL is not resolving to the correct IP address. Other users are able to navigate to the intended website without issue. Which of the following is most likely causing this issue?
The correct answer is A. Option A: Hosts file
A network administrator is planning to host a company application in the cloud, making the application available for all internal and third-party users. Which of the following concepts describes this arrangement?
The correct answer is A. Option A: Multitenancy
Which of the following should be used to obtain remote access to a network appliance that has failed to start up properly?
The correct answer is D. Option D: Out-of-band management
Which of the following attacks utilizes a network packet that contains multiple network tags?
The correct answer is B. Option B: VLAN hopping
Explanation
A VLAN creates a logical layer-2 broadcast domain to segment devices independently of physical location.
A network administrator is configuring a new switch and wants to connect two ports to the core switch to ensure redundancy. Which of the following configurations would meet this requirement?
The correct answer is D. Option D: Link aggregation
Which of the following ports is used for secure email?
The correct answer is D. Option D: 587 This option keeps traffic private / properly secured as required.
A client wants to increase overall security after a recent breach. Which of the following would be best to implement? (Choose two.)
The correct answer is A, C. Option A: Least privilege network access Option C: Central policy management
Explanation
Least privilege grants only the permissions needed for a task, limiting damage from mistakes or compromised accounts. This option keeps traffic private / properly secured as required.
Which of the following is a cost-effective advantage of a split-tunnel VPN?
The correct answer is D. Option D: Cloud-based traffic flows outside of the company's network. This option delivers the requirement at the lowest cost.
A network technician is troubleshooting a web application's poor performance. The office has two internet links that share the traffic load. Which of the following tools should the technician use to determine which link is being used for the web application?
The correct answer is D. Option D: tracert
Which of the following attacks can cause users who are attempting to access a company website to be directed to an entirely different website?
The correct answer is A. Option A: DNS poisoning
Explanation
DNS resolves host names to records such as IP addresses and service locations. DNS poisoning inserts false resolution data so users are redirected to an attacker-controlled destination.
As part of an attack, a threat actor purposefully overflows the content-addressable memory (CAM) table on a switch. Which of the following types of attacks is this scenario an example of?
The correct answer is C. Option C: MAC flooding
A company's office has publicly accessible meeting rooms equipped with network ports. A recent audit revealed that visitors were able to access the corporate network by plugging personal laptops into open network ports. Which of the following should the company implement to prevent this in the future?
The correct answer is D. Option D: NAC
A user notifies a network administrator about losing access to a remote file server. The network administrator is able to ping the server and verifies the current firewall rules do not block access to the network fileshare. Which of the following tools would help identify which ports are open on the remote file server?
The correct answer is B. Option B: nmap
Which of the following technologies is the best choice to listen for requests and distribute user traffic across web servers?
The correct answer is D. Option D: Load balancer
Explanation
A load balancer distributes requests across healthy backends to improve scale and availability.
A company is hosting a secure server that requires all connections to the server to be encrypted. A junior administrator needs to harden the web server. The following ports on the web server are open: Which of the following ports should be disabled?
The correct answer is B. Option B: 80 This option keeps traffic private / properly secured as required.
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