CISCO Certification

Practice CCNA – When a router is connected to a Frame Relay WAN link using a serial DTE interface, how is the clock rate determined?

Practice CCNA – All hosts in the networks have been operational for several hours when the DHCP server goes down. What happens to the hosts that have obtained service from the DHCP server?

Practice CCNA – In practical IPv6 application, The encapsulation of IPv6 packets inside IPv4 packets is called what?

Practice CCNA – Which layer chooses and determines the availability of communicating partners along with the resources necessary to make the connection, coordinates partnering applications, and forms a consensus on procedures for controlling data integrity and error recovery?

Practice CCNA – When a ping to the local host IP address fails, what can you assume?

Practice CCNA – What multicast addresses does RIPng use?

Practice CCNA – By default , what type of trust are all Windows 2000 trust relationships within a domain tree or forest?

Practice CCNA – Which layer defines how data is formatted , presented, encoded, and converted for use on the network?

Practice CCNA – Which of the following is an industry-wide standards suite of protocols and algorithms that allows for secure data transmission over an IP-based network that functions at the layer3 Network layer of the OSI model?

Practice CCNA – What is the most common attack on a network today?

Practice CCNA – An administrator issues the command “ping 127.0.0.1” from the command line prompt on a PC host named PC1. If an ICMP reply is received, what does this confirm?

Practice CCNA – Your company wants to reconfigure a Catalyst 2950. Which actions must be taken to erase the old configuration?(Choose three)

Practice CCNA – To use VLSM, what capability must the routing protocols in use possess?

Practice CCNA – Which OSI layer defines the standards for cabling and connectors?

Practice CCNA – Which layer of the OSI model offers three different modes of communication : Simplex, half duplex, and full duplex?