A modulator converts a _____ signal to a(n) _____ signal. None of these PSK; FSK analog; digital FSK; PSK digital; analog TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following device is used with an X.25 network to provide service to asynchronous terminals Packet assembler/disassemble gateway None of these bridges repeater TRUE ANSWER : ? YOUR ANSWER : ?
You have the following routing table. Which of the following networks will not be placed in the neighbor routing table?R 192.168.30.0/24 [120/1] via 192.168.40.1, 00:00:12, Serial0C 192.168.40.0/24 is directly connected, Serial0 172.16.0.0/24 is subnetted, 1 subnetsC 172.16.30.0 is directly connected, Loopback0R 192.168.20.0/24 [120/1] via 192.168.40.1, 00:00:12, Serial0R 10.0.0.0/8 [120/15] via 192.168.40.1, 00:00:07, Serial0C 192.168.50.0/24 is directly connected, Ethernet0 All of them will be placed in the neighbor routing table 192.168.30.0 172.16.30.0 10.0.0.0 TRUE ANSWER : ? YOUR ANSWER : ?
How many non-overlapping channels are available with 802.11a? 23 3 40 12 TRUE ANSWER : ? YOUR ANSWER : ?
You have your laptop directly connected into a router's Ethernet port. Which of the following are among the requirements for the copy flash tftp command to be successful?1. TFTP server software must be running on the router.2. TFTP server software must be running on your laptop.3. The Ethernet cable connecting the laptop directly into the router's Ethernet port must be a straight-through cable.4. The laptop must be on the same subnet as the router's Ethernet interface.5. The copy flash tftp command must be supplied the IP address of the laptop. 1, 3 and 4 2, 4 and 5 5 only 3 and 5 only TRUE ANSWER : ? YOUR ANSWER : ?
An example of digital, rather than analog, communication is DDD DDT DDS WATS None of these TRUE ANSWER : ? YOUR ANSWER : ?
If a firm wanted to transmit data from 1,000 punched cards to a remote computer, they would use a(n) POS terminal intelligent terminal batch processing terminal data collection terminal None of these TRUE ANSWER : ? YOUR ANSWER : ?
An encyclopedic database is easy for beginners to use is an information utility that specializes in storing and searching information All of these None of these is generally free TRUE ANSWER : ? YOUR ANSWER : ?
Ethernet and Token-Ring are the two most commonly used network architectures in the world. Jim has heard of the different topologies for networks and wants to choose the architecture that will provide him with the most options. Which of the following would that be? Choose the most correct answer. Token-Ring, because it uses a MAU Ethernet, because it is cabled using fiber-optic cable Ethernet, because it can be set up with most topologies and can use multiple transfer speeds Neither Token-Ring nor Ethernet is the proper choice. Only ARCnet can be used in all topologies Token-Ring because it currently can run at both 4Mbps and 16Mbps. This means that it can be used in any topology TRUE ANSWER : ? YOUR ANSWER : ?
Many large organizations with their offices in different countries of the world connect their computers through telecommunication satellites and telephone lines. Such a communication network is called EITHERNET ECONET WAN LAN None of these TRUE ANSWER : ? YOUR ANSWER : ?