A ______ is a DNS Client that requests information from DNS name servers
answer
Resolver
question
A ________ consists of a host's IP address and the port number of an application running on a host, with a colon separating the two values
answer
Socket
question
In Linux systems, What file contains the setting for the DHCP service?
answer
dhcpd.conf
question
A unique set of characters assigned to each NIC by its manufacturer. In the traditional, 48-bit physical addressing scheme, The extension identifier is 24 bits long. In EUI-64, the extension identifier is 40 bits long.
answer
Device ID
question
A type of DNS data record that maps the IPv4 address of an Internet-connected device to its domain name.
answer
A (Address) Record
question
The nonprofit corporation currently designated by the U.S government to maintain and assign IP addresses.
answer
ICANN(Internet Corporation of Assigned Names and Numbers)
question
A software package or hardware-based tool that can capture and analyze data on a network
answer
Packet analyzer
question
A type of address translation in which a gateway assigns the same public IP address to a host each time it makes a request to access the Internet
answer
SNAT (Static Network Address Translation)
question
A service available on computers running one of the Windows operating systems that automatically assigns the computer's network interface a link-local IP address. In IPv4, This address is in the range of 169.254.0.1 through 169.254.255.254
answer
APIPA (Automatic Private IP Addressing)
question
A Type of address translation in which a gateway has a pool of public IP Addresses that it is free to assign to a local host whenever the local host makes a request to access the internet.
answer
DNAT (Dynamic Network Address Translation)
question
A Type of DNS data record that is used for reverse lookups, to provide a host name when the IP address is known
answer
PTR record
question
A type of DNS data record that maps the IPv6 address of an Internet-connected device to its domain name.
answer
AAAA record
question
A protocol that run in the Session and Transport layers of the OSI model and associates NetBIOS names with workstations
answer
NetBIOS
question
The Network Time Protocol service uses what port number?
answer
UDP 123
question
What Range of ports is referred to as the "Well-known" range of ports?
answer
0-1023
question
What two ipconfig commands below are used to show DNS resolver cache information and clear the name resolver cache?
answer
ipconfig /flushdns
ipconfig /displaydns
question
Which protocol below is used to make an initial connection between hosts for transferring multimedia data, relaying on other protocols once a connection is established?
answer
SIP
question
A hexadecimal number is number written in the base 16 number system.
answer
True
question
A lookback IP address begins with what number?
answer
127
question
A port number, Which identifies an application on a host, exists on what level of the OSI model?
answer
Transport
question
A IPv6 address consists of how many bits?
answer
128 bits
question
DNS follows a centralized database model
answer
False
question
Describe how an IPv6 address is written and displayed
answer
IPv6 address is 128 bits and look like this 2001:0000:0B80:0000:0000:00D3:9C5A:00CC
Binary: 0010 0000 0000 0001
question
What is unicast?
answer
Specfies a single node on a network
question
What is Multicast?
answer
Delivers to all nodes in a targeted, multicast group
question
What is anycast?
answer
Anycast can identify multiple destination, with packets delivered to the closest destination
question
SNAT(Static Network Address Translation)
answer
The gateway assigns the same public IP address to a host
question
DNAT (Dynamic Network Address Translation)
answer
The Gateway assigns IP address from a pool to host
question
Each Organization that provides host services on the public internet is responsible for providing and maintaining DNS authoritative servers for public access
answer
True
question
How many clusters of root servers exist?
answer
13
question
ICANN is responsible for restrictions on use of the .com, .org, and .net TLDs
answer
False
question
NetBios applications should be replaced as they are out-of-date.
answer
True
question
Select the IPv6 address below that indicates a global unicast address:
answer
FE80::10
question
Select the name of the free, open source software that is by far the most popular DNS server software
answer
BIND
question
Select the protocol below that is used to synchronize clocks on computers on a network.
answer
NTP
question
The IP addresses 169.254.0.1 and 169.254.255.254 are both examples of _______
answer
Automatic Private IP Addressing (APIPA)
question
The MAC address, which is also known as the ______ address, is embedded on every NIC and is assumed to be unique
answer
Physical address
question
Traditional MAC Addresses are broken into two parts. Name these two parts.
answer
Device ID and Block ID
question
What RFC outlines recommendations for private IP addresses?
answer
RFC 1918
question
What are the last two parts of a host name known as?
answer
Domain name
question
What command can be used to display a complete summary of all network interfaces in a Windows computer?
answer
ipconfig /all
question
What command on Linux will display TCP/IP information associated with every interface on the device?
answer
ifconfig -a
question
What do the first 24 bits of a MAC address represent?
answer
OUI (Organizationally Unique Identifier)
question
What is a subnet mask, and how is it used?
answer
A subnet mask is a 32-bit number that helps one computer find another. The 32 bits are used to indicate what portion of an IP address is the network portion and what port of the host portion. Using this information, a computer can know if a remote computer with a give IP address is on its own or a different network
question
What protocol is commonly used to request configuration files from another computer?
answer
TFTP
question
What top level domain is used for the air-transport industry?
answer
.aero
question
What two address prefixes for IPv6 addresses are used for unique local unicast?
answer
FD00::/8
FC00::/7
question
What two names are used to describe the configuration in which internal and external DNS queries and handles by different DNS servers or by a single DNS server that is specially configured to keep internal and external DNS zone separate?
answer
Split-horizon DNS
Split DNS
question
What two types of IP addresses are used on the Internet?
answer
IPv6 and IPv4
question
What utility is used to verify the TCP/IP installed, bound to the NIC, configured correctly, and communicating with the network?
answer
ping
question
What two IPv6 nodes are on the same network, they are reffered to as which of the following?
answer
neighbors
question
________________ are not used to find noes on networks other than the local network.
answer
MAC addresses
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