A(n) _________ is generated by a failure such as power failure or memory parity error.
A. I/O interrupt
B. hardware failure interrupt
C. timer interrupt
D. program interrupt
B. hardware failure interrupt
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If both sender and receiver use the same key, the system is referred to as:
A) public-key encryption B) two-key C) asymmetric D) conventional encryption
The ________ acts as the administrator of the network
A) client-server B) node C) architecture D) server
Which of the following statements best describes a one-to-many relationship between two tables?
A) A foreign key in the first table matches several primary keys in the second table. B) Primary and foreign keys have multiple cross matches between a first and second table. C) A primary key in the first table matches exactly one foreign key in the second table. D) A primary key in the first table matches several foreign keys in the second table.
A network administrator is tasked to block all outbound SSH connections on the default port from a network subnet of 10.152.8.0/21 on a Linux based firewall. Which of the following rule sets would accomplish this task?
A. iptables -i OUTPUT -d 10.152.8.0/21 -p TCP --dport 22 -j REJECT B. iptables -i OUTPUT -d 10.152.8.0/21 -p TCP --dport 23 -j REJECT C. iptables -i OUTPUT -d 10.152.8.0/21 -p TCP --dport 22 -j ACCEPT D. iptables -i OUTPUT -d 10.152.8.0/21 -p TCP --dport 23 -j ACCEPT