Answer:
(a)
Assuming the one-time pad P is used to XOR the message M to get ciphertext C, the following holds:
M ⊕ P = C
P = C ⊕ M
this is a basic property of how XOR works.
(b)
P = M1 ⊕ C1
then M2 = C2 ⊕ P
(c)
The attacker can make assumptions about the message (e.g., presence of certain words and spaces) and then calculate which pad would be needed to get them in the ciphertexts. He then has two ciphertexts that should yield valid content, making it much more easy to guess the pad.
Explanation:
Answer:
A KVM switch.
Explanation:
A KVM switch would be the best solution for a customer to share the monitor, mouse, and keyboard between the two computers assuming he or she has one computer specifically for web services and another for a different purpose.
A KVM is an acronym for keyboard, video and mouse.
Basically, it is a hardware device which enables computer users to connect a keyboard, mouse and monitor (video display device) to several other computers and as such facilitates the sharing of these devices between multiple computers.
Answer:
for VoIP falls in Digital IP end to end categories
Explanation:
Normally to address the VoIP solution the phone or PABX should be the only digital module. All the telephone extensions are connected to switch and from the switch, it should be connected to the digital module in PABX. If existing PABX is analog then end-user has to purchase digital module
conversion to attach to analog PABX
Then switch which should be managed switch for better performance. Suppose it we use the switch as an unmanaged switch then the performance of VoIP will be very less effective. Since VoIP is used for internet purpose also better to use end to end digital mode.
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