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An ARP request is broadcasted and sends the following request.
''Who is 192.168.1.200? Tell 192.168.1.55''
At which of the following layers of the OSI model does this request operate?
Which of the following describes a situation in which an employee knowingly allows someone access to a restricted area without verifying authentication?
The situation in which an employee knowingly allows someone access to a restricted area without verifying authentication is calledTailgating. Here's why:
Piggybacking(Option A) refers to an unauthorized person following an authorized person into a secure area without their knowledge.
Shoulder surfing(Option C) involves someone observing sensitive information (such as passwords) by looking over another person's shoulder.
Phishing(Option D) is a form of social engineering where attackers deceive individuals into revealing confidential information.
Therefore, the correct answer isB. Tailgating
A network team is getting reports that air conditioning is out in an IDF. The team would like to determine whether additional network issues are occurring. Which of the following should the network team do?
'Baselines play an integral part in network documentation because they let you monitor the network's overall performance. In simple terms, a baseline is a measure of performance that indicates how hard the network is working and where network resources are spent. The purpose of a baseline is to provide a basis of comparison. For example, you can compare the network's performance results taken in March to results taken in June, or from one year to the next. More commonly, you would compare the baseline information at a time when the network is having a problem to information recorded when the network was operating with greater efficiency. Such comparisons help you determine whether there has been a problem with the network, how significant that problem is, and even where the problem lies.'
Which of the following describes the BEST device to configure as a DHCP relay?
Normally, routers do not forward broadcast traffic. This means that each broadcast domain must be served by its own DHCP server. On a large network with multiple subnets, this would mean provisioning and configuring many DHCP servers. To avoid this scenario, a DHCP relay agent can be configured to provide forwarding of DHCP traffic between subnets. Routers that can provide this type of forwarding are described as RFC 1542 compliant. The DHCP relay intercepts broadcast DHCP frames, applies a unicast address for the appropriate DHCP server, and forwards them over the interface for the subnet containing the server. The DHCP server can identify the original IP subnet from the packet and offer a lease from the appropriate scope. The DHCP relay also performs the reverse process of directing responses from the server to the appropriate client subnet.
Which of the following is associated with the session layer of the OSI model?
The session layer of the OSI model, which is Layer 5, is responsible for establishing, managing, and terminating connections between applications. The session layer sets up, coordinates, and terminates conversations, exchanges, and dialogs between the applications at each end. It handles sessions using service points, which are called 'sockets.' Therefore, sockets are closely associated with the session layer as they provide the endpoint for communication sessions between client-server applications. Other options such as data representation, packets, and frames are associated with other OSI layers (presentation, network, and data link, respectively).
