Networking certification test questions
with latest update
The default subnet mask for a class b network is - Answer-255.255.0.0
the default port used for SMTP is - Answer-25
the ping tool is used to - Answer-self test a hosts own network interface and determine
whether a host is reachable
Which of the following are features of DHCP - Answer-Address reservation and IP
address exculsion
The command line tool used to list a host's active incoming connections is - Answer-
NETSTAT
A computer has an IP address of 169.254.0.1 cannot access the network.Which of the
following services should you confirm is available? - Answer-DHCP
Which network does the IP address 220.100.100.100 belong to? - Answer-
220.100.100.0/24
Which subnet mask is vaild - Answer-255.255.255.240
A service that resolves NetBIOS names to IP addresses is: - Answer-Windows Internet
Name service (WINS)
What type of DNS Record maps host names to addresses? - Answer-Host (A) DNS
record
Teredo tunneling is a protocol that - Answer-allows IPv6 connectivity through IPv4
devices
What is the default subnet mask for a class C internet network - Answer-255.255.255.0
The default port used for telnet is - Answer-23
When a clients DHCP-issued address expires, the client will - Answer-attempt to obtain
a new address by broadcasting
You ping a server by using fully qualified domain name (FQDN) and not receive a
response. You then ping the same server by using its IP address and receive a
response. Why do you receive a response on the second attempt but not the first -
Answer-The DNS is not resolving
, A Media access control address identifies a - Answer-network interface card
two companies want to share data by using the internet. Which type of network provides
the solution - Answer-Extranet
VPNs are implemented to provide - Answer-a secure connection through public
networks
If an 802.11g internet connection has connectivity problems what may be the cause? -
Answer-Electromagnetic interference (EMI)
Which of these factors have the biggest impact on data transmission speed in a
wireless network? - Answer-The transmission standard of the equipment used
which of the following uses a tunneling protocol - Answer-VPN
A network that separates an organization private network from a public network -
Answer-Perimeter
Which type of network is most vulnerable to intrusion - Answer-wireless
Attenuation in a wireless network signal is a result of: - Answer-Distance form the
access point
Which type of network covers the broadcast area - Answer-WAN
In local area network topologies, the primary media access methods are - Answer-
contention and token passing
in a physical star topology, the central device is referred to as a - Answer-hub
Which technology can you use to extend an internal network across shared or public
networks - Answer-VPN
Which two are published IEE 802.11 wireless transmission standards - Answer-802.11g
and 802.11n
What happens when an 802.11b node starts broadcasting within the range of an
802.11g access point? - Answer-a connection will be established
Which technology provides the highest bit rate? - Answer-DS3
A VPN is a - Answer-encrypted connection across the internet
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