Chapter 6 Test Network+
What is the range of decimal values in each octet of an IPv4 address?
0 to 255
If you borrow 4 bits in a class C network, how many usable hosts will be on each subnet?
14
Which port is used to receive e-mail messages from e-mail servers (IMAP4)?
143
Which formula would you use to arrive at the number of hosts on a subnet?
2^h - 2, where h represents the number of host bits remaining.
Which formula would you use to calculate the number of new subnets?
2^n, where n is the number of bits you add to the subnet mask
How many binary digits are in an IPv4 address?
32
How long is a subnet mask?
32 bits
How many subnets can you create if you borrow 3 bits in a class C network?
8
Which port do HTTP Web servers use?
80
Which statement about subnet masks is true?
All machines on the same network have the same subnet mask.
Which method of sending a packet allows every computer on the LAN to hear the message?
Broadcast
If the first decimal value of an IP address is between 128 and 191, to what IP class does the network belong?
Class B
Which statement best describes a Class E address ID?
Class E is considered to be experimental.
Which task is performed by an ISP when it takes a block of addresses, subnets the block into multiple subnets, and then passes out the smaller individual subnets to customers?
Classless Inter-Domain Routing (CIDR)
Which tool automatically assigns an IP address whenever a computer connects to the network?
DHCP
What is the universal MAC address for broadcast?
FF-FF-FF-FF-FF-FF
T/F The Internet Protocol (IP) works at the Link layer
False
T/F The part of the IP address that is the same for all computers on a network is called the host ID.
False
T/F User Datagram Protocol (UDP) is a connection-oriented protocol.
False
T/F When a computer gives itself an Automatic Private IP Address (APIPA), it also includes a valid default gateway address.
False
T/F When you want to be positive that the data moving between two systems gets there in good order, use a connectionless application.
False
A Class C network block uses the __________ octets to define only the network ID.
First three
Which protocol uses TCP as its transport layer protocol?
HTTP
Which method of sending a packet allows a single computer to send a packet to a group of interested computers?
Multicast
To what layer of the OSI model does the TCP/IP model's Internet layer roughly correspond?
Network
IANA has grown dramatically and now oversees five __________ that parcel out IP addresses to large ISPs and major corporations.
Regional Internet Registries (RIRs)
Which protocol is connection-oriented?
TCP
What is the de facto protocol suite of the Internet?
TCP/IP
What network protocol do Apple systems use today?
TCP/IP
T/F A very early protocol called Bootstrap Protocol (BOOTP) preceded DHCP in providing dynamic IP addressing.
True
T/F Domain Name System (DNS) uses the User Datagram Protocol (UDP).
True
T/F Subnet masks are always 32 binary digits long.
True
T/F Systems that use only static IP addressing can never have DHCP problems.
True
T/F The first binary octet of a Class C IP address always begins with 110 (110xxxxx).
True
T/F Transmission Control Protocol (TCP) chops up data into segments.
True
T/F When a DHCP client boots up, it automatically sends out a special DHCP Discover message using the broadcast address.
True
T/F When a technician installs a range of IP addresses to be handed out by a router or server, this is called a DHCP scope.
True
Which protocol do Domain Name System (DNS) and Dynamic Host Configuration Protocol (DHCP) use?
UDP
Which method of sending a packet allows one computer to send a message directly to another user?
Unicast
No individual computer can have an IP address that ends with 0 because that is reserved for the ___________________.
network ID
What command can you use to tell a device to send packets to itself?
ping 127.0.0.1
What command would you run from a Windows command line to test a computer's network stack?
ping 127.0.0.1
