Chapter 2 Test

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A hexadecimal number is a number written in the base 16 number system.​

True

DNS follows a centralized database model.​

False

NetBIOS applications should be replaced as they are out-of-date.

True

ICANN is responsible for restrictions on use of the .com, .org, and .net TLDs.​

False

Each organization that provides host services on the public Internet is responsible for providing and maintaining DNS authoritative servers for public access.​

True

An IPv6 address consists of how many bits?​
b. 128

a. 32 b. ​128 c. ​96 d. ​48

A port number, which identifies an application on a host, exists at what level of the OSI model?​
c. Transport

a. Network b. Application c. Transport d. ​Data link

What are the last two parts of a host name known as?​
d. domain name

a. ​top level domain b. ​fully qualified domain name (FQDN) c. ​host qualifier d. ​domain name

What do the first 24 bits of a MAC address represent?​
a. Organizationally Unique Identifier

a. ​Organizationally Unique Identifier b. device ID c. ​extension ID d. ​network ID

What command below can be used to display ​a complete summary of all network interfaces in a Windows computer?
a. ipconfig /all

a. ​ipconfig /all b. ​ipconfig /show c. ​ipconfig /a d. ​ipconfig /list

What top level domain is used for the air-transport industry?​
a. .aero

a. ​.aero b. ​.tport c. ​.intl d. ​.air

How many clusters of root servers exist?​
c. 13

a. ​15 b. ​10 c. ​13 d. ​8

What range of ports is referred to as the "well-known" range of ports?
d. 0-1023

a. ​500 – 1024 b. 1024-49151​ c. ​49152-65535 d. ​0-1023

A loopback IP address begins with what ​number?
d. 127

a. ​254 b. ​169 c. 192 d. ​127

In Linux systems, what file contains the settings for the DHCP service?
a. dhcpd.conf

a. ​dhcpd.conf b. ​dhcp.cf c. ​dhcpd.cfg d. ​dhcp.ini

What command on Linux will display TCP/IP information associated with every interface on the device?​
d. ifconfig -a

a. ​ipconfig -a b. ​ipconfig /all c. ​ifconfig /all d. ​ifconfig -a

Select the IPv6 address below that indicates a global unicast address:
c. 2000::/3

a. FC00::/7 b. ​FE80::10 c. ​2000::/3 d. ​FD00::/8

​Which protocol below is used to make an initial connection between hosts for transferring multimedia data, relying on other protocols once a connection is established?
a. SIP

a. ​SIP b. ​H.323 c. ​SMB d. ​NTP

The Network Time Protocol service uses what port number?
c. UDP 123

a. UDP 90 b. TCP 123 c. ​UDP 123 d. ​TCP 89

Select the name of the free, open source software that is by far the most popular DNS server software:
a. BIND

a. ​BIND b. ​Dnsmasq c. ​Microsoft DNS d. ​Oracle Resolver

Select the protocol below that is used to synchronize clocks on computers on a network:​
c. NTP

a. CIFS b. ​SMTP c. ​NTP d. ​SIP

When two IPv6 nodes are on the same network, they are referred to as which of the following?
c. neighbors

a. ​collaborators b. ​adjacent c. ​neighbors d. friends

What utility is used to verify that TCP/IP installed, bound to the NIC, configured correctly, and communicating with the network?​
d. ping

a. ​ifconfig b. ​route c. traceroute d. ​ping

What RFC outlines recommendations for private IP addresses?​
b. RFC 1918

a. ​RFC 2332 b. RFC 1918 c. ​RFC 638 d. ​RFC 1900

What protocol is commonly used to request configuration files from another computer?​
c. TFTP

a. ​SIP b. SNMP c. ​TFTP d. ​SMB

What two types of IP addresses are used on the Internet?​
c. IPV4
d. IPV6

a. IPng b. ​IPX c. ​IPv4 d. ​IPv6

Traditional MAC addresses are broken into two parts. Name these two parts.​
a. device ID
c. block ID

a. device ID b. ​secondary octet c. ​block ID d. ​primary octet

What two names are used to describe the configuration in which internal and ​external DNS queries are handled by different DNS servers or by a single DNS server that is specially configured to keep internal and external DNS zones separate?
a. split-horizon DNS
b. split DNS

a. ​split-horizon DNS b. ​split DNS c. ​walled-DNS d. ​DMZ DNS

What two address prefixes for IPv6 addresses are used for unique local unicast?​
b. FC00::/7
c. FD00::/8

a. ​FE80::/64 b. ​FC00::/7 c. ​FD00::/8 d. ​FF00::/8

What two ipconfig commands below are used to show DNS resolver cache information and clear the name resolver cache?
a. ipconfig /displaydns
c. ipconfig /flushdns

a. ​ipconfig /displaydns b. ​ipconfig /alldns c. ​ipconfig /flushdns d. ​ipconfig /releasedns

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