When configuring a T1 leased line, what is the maximum number of DS0 channels that can be configured?
A) 4
B) 28
C) 24
D) 8
C
Explanation: C) A DS0 is a single channel of a DS1 (T1). A T1 has 24 available channels, for a total available bit rate of 1.544 Mbps (before overhead–1.536 Mbps is a common clear channel actual rate).
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Which of the following operators can be used when filtering numbers?
A. Like B. Less Than C. Identical D. Less By More Than
The IP address 192.12.1.0 is a Class _____ address and with a CIDR of /30 has a subnet mask of ____ with ____ subnets and ____ hosts/subnet.
a. C, 255.255.255.252, 64, 2 b. C, 255.255.248.0, 30, 2046 c. C, 255.255.255.240, 14, 14 d. None of these answers are correct
In a multi-user game, the players move figures around a common scene. The state of the game is replicated at the players’ workstations and at a server, which contains services controlling the game overall, such as collision detection. Updates are multicast to all replicas.
(i) The figures may throw projectiles at one another and a hit debilitates the unfortunate recipient for a limited time. What type of update ordering is required here? Hint: consider the ‘throw’, ‘collide’ and ‘revive’ events. (ii) The game incorporates magic devices which may be picked up by a player to assist them. What type of ordering should be applied to the pick-up-device operation?
Which of the following is true about asymmetric cryptography?
A. the private key can be used to encrypt and decrypt a message B. a shared key is used to encrypt all messages and the private key decrypts them C. a single key is used and is transferred using a key management system D. the public key is used to encrypt a message sent to the private key owner