Computer Networking What is the default subnet mask for a class A network? 127.0.0.1 255.255.255.0 None of these 255.0.0.0 255.255.255.0.0 127.0.0.1 255.255.255.0 None of these 255.0.0.0 255.255.255.0.0 ANSWER DOWNLOAD EXAMIANS APP
Computer Networking A network administrator is connecting hosts A and B directly through their Ethernet interfaces, as shown in the illustration. Ping attempts between the hosts are unsuccessful. What can be done to provide connectivity between the hosts?1. A crossover cable should be used in place of the straight-through cable.2. A rollover cable should be used in place of the straight-through cable.3. The subnet masks should be set to 255.255.255.192.4. A default gateway needs to be set on each host.5. The subnet masks should be set to 255.255.255.0. 1 only 3 and 4 only 1 and 5 only 2 only 2 and 5 only 1 only 3 and 4 only 1 and 5 only 2 only 2 and 5 only ANSWER DOWNLOAD EXAMIANS APP
Computer Networking In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN? When upper-layer protocols require high reliability During high-traffic periods In an improperly implemented redundant topology After broken links are reestablished When upper-layer protocols require high reliability During high-traffic periods In an improperly implemented redundant topology After broken links are reestablished ANSWER DOWNLOAD EXAMIANS APP
Computer Networking A 2000-character text file has to be transmitted by using a 1,200 baud modem. Can you tell how long will it take? 120 seconds 12 seconds 2 seconds None of these 20 seconds 120 seconds 12 seconds 2 seconds None of these 20 seconds ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which of the following protocols uses both TCP and UDP? DNS Telnet FTP SMTP DNS Telnet FTP SMTP ANSWER DOWNLOAD EXAMIANS APP
Computer Networking How does a host on an Ethernet LAN know when to transmit after a collision has occurred?1. In a CSMA/CD collision domain, multiple stations can successfully transmit data simultaneously.2. In a CSMA/CD collision domain, stations must wait until the media is not in use before transmitting.3. You can improve the CSMA/CD network by adding more hubs.4. After a collision, the station that detected the collision has first priority to resend the lost data.5. After a collision, all stations run a random backoff algorithm. When the backoff delay period has expired, all stations have equal priority to transmit data. 2 and 4 2 and 5 1 and 3 1,3 and 4 2 and 4 2 and 5 1 and 3 1,3 and 4 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS