Regarding constructing a good encryption algorithm， what does creating an avalanche effect indicate？（）A、Altering the key length causes the ciphertext to be completely differentB、Changing only a few bits of a ciphertext message causes the plain text to be completely differentC、Altering the key length causes the plain text to be completely differentD、Changing only a few bits of a plain-text message causes the ciphertext to be completely different
Regarding constructing a good encryption algorithm， what does creating an avalanche effect indicate？（）
- A、Altering the key length causes the ciphertext to be completely different
- B、Changing only a few bits of a ciphertext message causes the plain text to be completely different
- C、Altering the key length causes the plain text to be completely different
- D、Changing only a few bits of a plain-text message causes the ciphertext to be completely different
相关考题：
By default， on the WLAN controller for a voice application using Cisco 7921 wireless IP phones. What is the percentage of RF bandwidth that can be dedicated to the phones？（）A、75 percentB、85 percentC、56 percentD、55 percent
You deployed new fibers in your network to replace copper spans that were too long. While reconnecting the network，you experienced network problems because you reconnected wrong fibers to wrong ports. What could you do to prevent this type of problem in the future，particularly when connecting and reconnecting fiber pairs？（）A、Only use fiber in pairs.B、Configure root guard on your switches.C、Do not use fiber but use copper.D、Configure UDLD to prevent one-way link conditions.
Where does routing occur within the DoD TCP/IP reference model?（）A、applicationB、internetC、networkD、transport
QoS refers to the ability of a network to provide improved service， over various underlying technologies， to select network traffic. Which two traits are inherent to QoS？（）A、 reference to network ability to provide improved service to all network trafficB、 reduction in delay， jitter， and packet lossC、 equal handling of all packetsD、 support for real-time applicationsE、 best-effort actions
What are two characteristics of RIPv2?（）A、classful routing protocolB、variable-length subnet masksC、broadcast addressingD、manual route summarizationE、uses SPF algorithm to compute path
Which two statements about a wireless repeater topology are true？（）A、A wireless repeater is an access point that is not connected to the wired LAN.B、The repeater feature is only available in lightweight access point topologies.C、The SSID of the root access point must be configured on the repeater access point.D、This topology requires a 10 - 15 percent overlap between a wired access point and the wireless repeater.E、This topology requires a 15 - 25 percent overlap between a wired access point and the wireless repeater.F、To avoid interference， the repeater access point must use a different channel from what the root access point uses.