Which of the following best explains the role of confidentiality with regard to data at rest?
Answer(s): C
Confidentiality with regard to data at rest refers to ensuring that sensitive information stored on a device or network is protected from unauthorized access. This means that data can only be accessed by individuals who have been granted the appropriate privileges or permissions. Access control mechanisms such as encryption, password protection, and authentication are typically used to maintain the confidentiality of data at rest.
Several users in an organization report connectivity issues and lag during a video meeting. The network administrator performs a tcpdump and observes increased retransmissions for other non-video applications on the network.Which of the following symptoms describes the users' reported issues?
Answer(s): B
In the scenario described, the increased retransmissions observed for non-video applications suggest that there is packet loss on the network.When packets are lost during transmission, they must be retransmitted, which leads to increased latency, delays, and issues like connectivity and lag. This is especially noticeable in time-sensitive applications like video meetings, where dropped packets can cause significant disruptions.
An administrator enables DNS filtering on the firewall to block users from visiting malicious websites.Which of the following should the administrator also do? (Choose two.)
Answer(s): A,F
Disable DoH in users' internet browsers:DNS over HTTPS (DoH) encrypts DNS queries, which can bypass DNS filtering. By disabling DoH in the users' internet browsers, the administrator ensures that DNS queries are sent to the designated DNS filter server, where they can be inspected and potentially blocked for malicious sites.Implement DNSSEC for corporate records:DNS Security Extensions (DNSSEC) adds security to the DNS protocol by ensuring the integrity and authenticity of DNS data. By implementing DNSSEC for corporate records, the administrator ensures that the DNS responses are not tampered with, preventing DNS spoofing attacks which could allow malicious sites to bypass the DNS filtering.
Which of the following is concerned with guaranteed availably of a cloud resource?
SLA (Service Level Agreement):An SLA is a formal agreement between a cloud service provider and the customer that specifies the level of service the provider will deliver. It typically includes details about the guaranteed availability (uptime), response times, and other service metrics. The SLA guarantees the availability of cloud resources by setting expectations on service uptime and what compensations or actions will be taken if the service level is not met.
A network consultant needs to decide between running an Ethernet uplink or using the built-in 5GHz point-to- point functionality on a WAP.Which of the following documents provides the best information to assist the consultant with this decision?
Answer(s): A
Site survey results:A site survey provides critical information about the physical environment where the network will be deployed, including signal strength, interference, and the best possible locations for access points (WAPs). This information is essential for making decisions about network design, including whether to use an Ethernet uplink or the 5GHz point-to-point functionality. The site survey results will highlight factors such as coverage areas, potential obstacles, and interference, which will inform the choice between these two options.
While troubleshooting connectivity issues, a junior network administrator is given explicit instructions to test the host's TCP/IP stack first.Which of the following commands should the network administrator run?
ping 127.0.0.1:This command tests the local host's TCP/IP stack by sending a ping to the loopback address (127.0.0.1). The loopback address is used to test if the host's networking software and TCP/IP stack are functioning properly without relying on any physical network connections. If this ping is successful, it confirms that the host's TCP/IP stack is working correctly.
Users at an organization report that the wireless network is not working in some areas of the building. Users report that other wireless network SSIDs are visible when searching for the network, but the organization's network is not displayed.Which of the following is the most likely cause?
Insufficient wireless coverage:If the organization's wireless network is not visible in some areas of the building, the most likely cause is insufficient wireless coverage in those areas. This could be due to the distance from the wireless access points (WAPs), obstacles like walls or furniture, or the placement of the WAPs. In areas with poor coverage, the signal may not be strong enough for the SSID to be detected by devices, even though other SSIDs are visible.
Which of the following panels would be best to facilitate a central termination point for all network cables on the floor of a company building?
MDF (Main Distribution Frame):The MDF is the best choice for a central termination point for all network cables in a building. It serves as the primary hub for connecting network cables, both from within the building and from external sources. The MDF is typically located in a centralized area where all the cables from various parts of the building are brought together and then routed to other areas like the IDF (Intermediate Distribution Frame) or directly to network equipment. It is the main point for managing and distributing network connections.
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