System Utilities Management — Test 1

Correct Answer: B. B. Ifconfig
Explanation: The command ifconfig on a UNIX system is used to assign an address to a network interface or to configure network interface- parameters. Usually, one needs to be a super-user (su) in UNIX to set interface parameters.

Correct Answer: D. D. By finding all the hosts on a local area network (LAN) using a broadcast ping on the LAN
Explanation: Dig or nslookup can help when one wants to find all the hosts on a local area network (LAN). This can be done using a broadcast ping on the LAN. We need to know the IP address to execute this command, which we may not know. However, if we know a host name on the LAN, we could obtain the IP address using nslookup.

Correct Answer: C. C. Domain name server
Explanation: The UNIX commands, nslookup, host and dig, are useful for obtaining names and addresses on hosts and domain name servers. A domain name server provides the service of locating IP addresses.

Correct Answer: B. B. False
Explanation: One of the most basic tools is ping (Packet lnternet Groper). A frequent use of it is when an execution of a command on a remote station fails. As one of the first diagnostics, we want to ensure that the connection exists, for which the ping utility is executed to the remote host. If it fails, then there is a problem with the link. If it passes, then the trouble is with either the application or something else.

Correct Answer: D. D. Raw throughput
Explanation: Bing (point to point bandwidth ping) is a using useful tool, heavily based on ping. The bing utility determines the raw throughput of a link by calculating the difference in round-trip times for different packet sizes from each end of the link.

Correct Answer: B. B. False
Explanation: SNMP MIB tools are of three types: (I) SNMP MIB browser; (2) a set of SNMP command-line tools; and (3) Linux/FreeBSD-based tool. An SNMP MIB browser is a user-friendly tool that can be accessed from public software libraries or commercially purchased.

Correct Answer: C. C. Snmp get command
Explanation: SNMP Get Command communicates with a network object using the SNMP get-request message. The host may be either a host name or an IP address. If the SNMP agent resides on the host with the matching community name, it responds with a get-response message returning the value of the objectID.

Correct Answer: A. A. It captures snmp packets going across the segment and stores them for later analysis
Explanation: The SNMP Sniff Tool snmpsniff; is similar to the tcpdump tool and is implemented in Linux/FreeBSD environment. It captures SNMP packets going across the segment and stores them for later analysis.

Correct Answer: B. B. Local area network
Explanation: The protocol analyzer is a powerful and versatile network management tool. Although it could be used for the analysis of any line, its primary use is in the LAN environment. It consists of a data capture device that is attached to a LAN.