Networking Final Part 7

Which two functions are performed at the LLC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.)

-enables IPv4 and IPv6 to utilize the same physical medium -places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame

What happens when the transport input ssh command is entered on the switch vty lines?

Communication between the switch and remote users is encrypted

A client packet is received by a server. The packet has a destination port number of 80. What service is the client requesting?

HTTP

The global configuration command ip default-gateway 172.16.100.1 is applied to a switch. What is the effect of this command?

The switch can be remotely managed from a host on another network

Hardware threats

physical damage to servers, routers, switches, cabling plant, and workstations

Electrical threats

voltage spikes, insufficient supply voltage (brownouts), unconditioned power (noise), and total power loss

What is an advantage for small organizations of adopting IMAP instead of POP?

Messages are kept in the mail servers until they are manually deleted from the email client

A technician can ping the IP address of the web server of a remote company but cannot successfully ping the URL address of the same web server. Which software utility can the technician use to diagnose the problem?

nslookup

Maintenance threats

poor handling of key electrical components (electrostatic discharge), lack of critical spare parts, poor cabling, and poor labeling

Environmental threats

temperature extremes (too hot or too cold) or humidity extremes (too wet or too dry)