Which of the following communications service provides message preparation and transmission facilities? Teletext Teletex Fax x400 None of these TRUE ANSWER : ? YOUR ANSWER : ?
After you have verified that TCP/IP is installed correctly, what is the next step in verifying the TCP/IP configuration? Ping the address of the local host Ping the Microsoft Web site Ping a distant router. Ping the broadcast address None of these TRUE ANSWER : ? YOUR ANSWER : ?
Data link layer retransmits the damaged frames in most networks. If the probability of a frame's being damaged is p, what is the mean number of transmissions required to send a frame if acknowledgements are never lost. K I (K - P) KIK (1 + F) P I (K + 1) None of these 1/ (1 - F) TRUE ANSWER : ? YOUR ANSWER : ?
You have a network that needs 29 subnets while maximizing the number of host addresses available on each subnet. How many bits must you borrow from the host field to provide the correct subnet mask? 3 5 2 4 TRUE ANSWER : ? YOUR ANSWER : ?
You are working with three networks that have the network IDs 192.168.5.0, 192.168.6.0, and 192.168.7.0. What subnet mask can you use to combine these addresses into one? 255.255.252.0 255.255.255.240 225.255.254.0 255.255.255.252 TRUE ANSWER : ? YOUR ANSWER : ?
With an IP address of 100, you currently have 80 subnets. What subnet mask should you use to maximize the number of available hosts? 224 192 252 240 248 TRUE ANSWER : ? YOUR ANSWER : ?
You want to run the new 802.1w on your switches. Which of the following would enable this protocol? Switch# spanning-tree mode 802.1w Switch(config)# spanning-tree mode 802.1w Switch(config)# spanning-tree mode rapid-pvst Switch# spanning-tree mode rapid-pvst TRUE ANSWER : ? YOUR ANSWER : ?
Distributed Queue Dual Bus is a standard for LAN LAN and MAN Wireless LAN WAN MAN TRUE ANSWER : ? YOUR ANSWER : ?
In communication satellite, multiple repeaters are known as stations detector modulator None of these transponders TRUE ANSWER : ? YOUR ANSWER : ?
The standard suit of protocols used by the Internet, intranets, extranets, and some other networks. Internetwork processor Protocol Open Systems TCP/IP Hybrid hub TRUE ANSWER : ? YOUR ANSWER : ?