Once issued, the digital certificates are publicly available and are held by the certificate authority in_______ repositories.
a) digital.
b) certificate.
c) signature.
d) None of the above.
b) certificate.
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Unlike SGML, XML can be used to design markup languages for different types of structured documents.
Answer the following statement true (T) or false (F)
How long does the session between A and B last, using connectionless communication? Explain.
In this exercise we will use a simplified mathematical model to analyze the tradeoff between connection-oriented communication and connectionless communication. Explain your answer. On a certain network both forms of communication are provided: • Using connection-oriented communication, it takes 50 second to establish a connection, after which a packet of up to 10 characters can be sent in 1.0 seconds over the connection, in either direction. • Using connectionless communication, a packet of up to 10 characters can be sent in 1.2 second. (The sending of each packet takes slightly longer than in the connection-oriented case, since each packet must find its way to the receiver.) Suppose A and B exchanges messages on this network. A initiates the communication and sends to B a message of 100 characters, which are partitioned into 10 packets. In reply, B sends a message of 50 characters, which are partitioned into 5 packets. Assuming that there is no delay other than the time it takes for establishing a connection (in the connection-oriented case) and for packet transmission:
How many times the following code prints "Welcome to C++"?
``` int count = 0; do { cout << "Welcome to C++"; } while (++count < 10); ``` A. 10 B. 9 C. 0 D. 11 E. 8
By default, new workbooks contain ________ worksheets
Fill in the blank(s) with correct word