Chapter 3: Address on Networks Flashcards
A Windows computer on your network is having issues resolving queries for a specific domain, but not other domains. Other computers on the same network resolve the name just fine. What command can you issue that might fix the problem?
ipconfig /release
ipconfig /renew
ipconfig /flushdns
ipconfig /refresh
ipconfig /flushdns
Encrypted control of remote computers using the RDP protocol is accomplished using what port number?
UDP 161
UDP 10000
TCP 3389
TCP 22
TCP 3389
How do routers create a broadcast domain boundary?
a) The forward broadcasts only to necessary segments.
b) They do not forward broadcast traffic
c) They listen and direct broad cast traffic.
d) They only forward broadcasts that are intended for multiple subnets.
b) They do not forward broadcast traffic
In a DNS zone, What type of record holds the name-to-address mapping or IPv6 addresses?
AAAA record
PTR record
A record
TXT record
AAAA record
A record: Associates a domain name with an IPv4 address.
AAAA record: Associates a domain name with an IPv6 address.
PTR record: Used for reverse DNS lookups to map an IP address to a domain name.
TXT record: Used for adding text information to a domain, commonly for various purposes like SPF records for email authentication.
In the classful addressing scheme, what range of network addresses is considered a Class B?
Group of answer choices
128.0.x.y to 191.255.x.y
1.x.y.z to 126.x.y.z
224.x.y.z to 255.x.y.z
192.0.0.x to 223.255.255.x
128.0.x.y to 191.255.x.y
Class A network addresses range from 1.0.0.0 to 126.0.0.0.
Class B network addresses range from 128.0.0.0 to 191.255.0.0.
Class C network addresses range from 192.0.0.0 to 223.255.255.0.
Class D and Class E are reserved for multicast and experimental purposes, respectively.
So, the range of network addresses considered a Class B is 128.0.0.0 to 191.255.0.0.
What command can be used to check a domain computer’s time source from a Command Prompt window?
Group of answer choices
ntpd show source
date /source
time –source
w32tm /query /source
w32tm /query /source
This command will provide information about the source from which the computer is synchronizing its time. It is a commonly used command to check the time source configuration on Windows systems.
What does the MX record do in a forward DNS zone?
Group of answer choices
It identifies the hostname and port of a computer that hosts a specific network service, such as FTP or SIP.
It identifies the authoritative name server for a domain.
It holds the alternative names for a host.
It identifies the e-mail server to be used for e-mail traffic for the domain.
It identifies the e-mail server to be used for e-mail traffic for the domain.**
MX (mail exchange) records specify the mail servers responsible for receiving email messages on behalf of a domain. When someone sends an email to an address within the domain, the MX record directs the email to the appropriate mail server, which is responsible for handling incoming mail for that domain.
What is the ARPA domain suffix utilized for?
Group of answer choices
It is used to announce records for other TLDs such as .com and .net.
It is used for reverse DNS queries, and holds PTR records.
It is a private TLD used for synchronization of zones between servers.
It is a specialized government restricted TLD.
It is used for reverse DNS queries, and holds PTR records.
What statement regarding the Server Message Block protocol is accurate?
Group of answer choices
It is used by Windows and UNIX-based operating systems to share files.
It is a signaling protocol used to make a connection between hosts prior to data transfer.
It is a protocol used for accessing network-based LDAP directories.
It is a simple protocol used to synchronize block messages written to iSCSI drives on a network.
It is used by Windows and UNIX-based operating systems to share files.
What type of IPv6 address is fe80::8cf1:2c42:ffde:da1c?
Group of answer choices
multicast address
link local address
anycast address
global address
link local address
When using DHCP for IPv6 (i.e. DHCPv6), what port do clients receive responses on?
Group of answer choices
port 67
port 68
port 546
port 547
port 547
Which of the following IPv6 addresses represents a global unicast address?
Group of answer choices
2000::/3
FD00::/8
FC00::/7
FE80::10
2000::/3
Which of the following protocols is used as a signaling protocol for the initial connection between hosts, but does not participate in data transfer during the session?
Group of answer choices
TFTP
NTP
LDAP
SIP
SIP
You are setting up a DNS zone and have been asked to create SPF and DKIM records. What type of DNS record will hold this information?
Group of answer choices
PTR record
TXT record
CNAME record
SRV record
TXT record
You are troubleshooting a network issue on a client computer and discover that the network card has an IP address of 169.254.196.200. What does this mean?
Group of answer choices
The computer is configured to use DHCP, but was unable to lease an address.
The network card is set up for multicast communication.
The network card has been erroneously assigned a loopback address.
The computer has been assigned a routed public IP address.
The computer is configured to use DHCP, but was unable to lease an address.
