1) A ? on the network knows where the node with this address is and routes the message to it accordingly. a) switch b) router c) IP address 2) Each node connects to a hub or switch. A central machine acts as server whilst the outer nodes are clients.. a) Star b) Bus c) Hardware d) Circle 3) Is a topology where all the nodes are connected to a single cable called a backbone a) Star b) Bus c) Hardware d) Circle 4) Each node on a network is given a unique 32 bit address (4x8bits) e.g, 192.168.0.1 This is called a? a) MAC address b) Domain Name c) IP address d) Router 5) this protocol allows the network server to control the allocation of IP addresses a) HTTPS b) DHCP (Dynamic Host Configuration Protocol) c) FTP d) SMTP 6) Governs the retrieving of emails from an email server, leaving the email on the remote server a) IMAP b) DHCP (Dynamic Host Configuration Protocol) c) POP d) SMTP 7) Governs the retrieving of emails from the email server, deleting the remote copy of the email once it has downloaded locally to your computer a) IMAP b) DHCP (Dynamic Host Configuration Protocol) c) POP d) SMTP 8) Governs the sending of emails to an email server a) IMAP b) DHCP (Dynamic Host Configuration Protocol) c) POP d) SMTP 9) Governs the transfer of files, such as documents, images, or audio, across a network a) TCP/IP b) DHCP (Dynamic Host Configuration Protocol) c) FTP d) SMTP 10) Governs data transmission between a client and web server a) TCP/IP b) DHCP (Dynamic Host Configuration Protocol) c) FTP d) HTTP 11) This protocol is similar to TCP, but because messages are sent instead of packets -chunks - it is often faster, allowing for gaming or video calls a) FTP b) UDP - User Datagram Protocol c) HTTPS d) POP 12) This layer divides the data into packets, which are smaller parts of the original data. Each packet is given a number, so that they can be reassembled in the correct order by the recipient computer. Examples of protocols used here are TCP and UDP. However of the two, only TCP checks for errors in data transmission, such as missing packets. a) Application b) Transport c) Network d) Link  13) This layer is responsible for transporting the packets of data across a network. This includes the physical hardware and the software needed. Examples are Ethernet and WiFi. a) Application b) Transport c) Network d) Link  14) This layer includes the protocols and methods that are used to provide user interfaces. Examples of protocols used here are HTTP, HTTPS, POP3, SMTP, IMAP. a) Application b) Transport c) Network d) Link  15) This layer adds the sender's and recipient's IP address to each packet, so that the package can find its destination. IP addresses work similarly to postal addresses; they are responsible for routing the packet to the correct location. This is performed by the Internet Protocol (IP). a) Application b) Transport c) Network d) Link  16) Which layer do the TCP and UDP protocols operate at? a) Application b) Transport c) Network d) Link  17) Which layer does the IP protocol operate at? a) Application b) Transport c) Network d) Link  18) Which layer do the HTTP, HTTPS, SMTP, IMAP protocols operate at? a) Application b) Transport c) Network d) Link 

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