What information is displayed by the show hosts command? Temporary DNS entries The names of the routers created using the hostname command The IP addresses of workstations allowed to access the router Permanent name-to-address mappings created using the ip host command The length of time a host has been connected to the router via Telnet
Options: 1, 2 and 3, 1 and 4, 3, 4, and 5, All of the above
Options: means storing records in contiguous blocks according to a key., Stores records sequentially but uses an index to locate records, uses an index for each key type, has records placed randomly throughout the file
In which addressing mode the effective address of the operand is the contents of a register specified in the instruction and after accessing the operand, the contents of this register is incremented to point to the next item in the list?
Options: index addressing, indirect addressing, auto increment, auto decrement
Options: It sends back the protocol received from a router as a poison pill, which stops the regular updates., It is information received from a router that can't be sent back to the originating router., It prevents regular update messages from reinstating a route that has just come up., It describes when a router sets the metric for a downed link to infinity.