What are the problems of using community strings in SNMP?
What will be an ideal response?
The use of community strings in the first two versions of SNMP, SNMPv1 and SNMPv2, created several vulnerabilities. First, the default SNMP community strings for read-only and read-write were public and private, respectively. Administrators who did not change these default strings left open the possibility of an attacker taking control of a network device. Second,many administrators who reset the community strings used weak strings (passwords) for security. Finally,community strings are transmitted in cleartext, meaning that an attacker with a packet sniffer can view the contents of the strings as they are transmitted.
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Deciding what entries to keep in the TLB is crucial to the efficient operation of a virtual memory system. The percentage of references that get “resolved” via the TLB is called the TLB hit ratio. Compare and contrast the performance of virtual address translation systems that achieve a high (near 100 percent) hit ratio versus those that achieve a low (near 0 percent) hit ratio.
What will be an ideal response?
In a business letter, the complimentary closing is followed by the ________ character
A) colon B) period C) comma D) semi colon
Which of the following is true of OSPF routers? (Select all that apply.)
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A. bootrec B. fixboot C. fixmbr D. scanos