Test 2023-2024 with complete solutions
The open system interconnection reference model (OSI/R<) Network layer serves which primary function? CORRECT ANSWERS It uses layer 3 addresses to create
multiple routed networks
The address 68.56.189.17 belongs to which internet protocol IP class? CORRECT ANSWERS Class A
What happens to a datagram sent by a higher level protocol to a 127.x.y.z address? CORRECT ANSWERS The datagram loops back inside the host and never leaves the network interface card (NIC)
Which device evaluates and acts upon a packet's internal protocol (IP) address? CORRECT ANSWERS Router
The network layer must do what to a recieved frame, in order to determine the route over which it will forward the datagram to the next network? CORRECT ANSWERS Decapsulate the packet
What network information can be determined from a logical internet protocol (IP) address? CORRECT ANSWERS The host portion and network portion
the physical address of a device is processed by which layer of the open systems interconnection reference model (OSI/RM)? CORRECT ANSWERS The data link layer
Which layer of the open system interconnection reference modle (OSI/RM) would you suspect as being the problem when packets arriving at the server but no information is being returned to the client? CORRECT ANSWERS The transport layer All computers running on the transmission control protocol/internet protocol (TCP/IP) suite have which of the following in common? CORRECT ANSWERS Each computer is assigned its own internet protocol (IP) address
A repeater operates at which layer of the open systems interconnection reference model (OSI/RM)? CORRECT ANSWERS The physical layer.
Which of the following protocols allows email clients to download their messages from an email server? CORRECT ANSWERS Post office protocol version 3 (POP3)
Hypertext transfer protocol (HTTP) is what type of protocol? CORRECT ANSWERS Stateless
On the file transfer protocol (FTP) server, what manages client requests for file retrieval or transmission? CORRECT ANSWERS A daemon
What are the primary requirements to connect a transmission control protocol/ internet protocol (TCP/IP) network? CORRECT ANSWERS Unique pairs of network layer and transport layer addresses and use of the TCP/IP protocol suit.
What type of delivery method uses an email server between the sender and the receiver of messages? CORRECT ANSWERS Store-and-forward
Host names and uniform resource locators (URL) are resolved to internet protocol (IP) addresses by which of the following? CORRECT ANSWERS Domain Name System (DNS)
What happens when the browser application finishes the downloading the files necessary to display a web page? CORRECT ANSWERS The browser server drop
the connections, and the browser maintains th epage and its elements in local memory.