The following is an excerpt from the output of tcpdump -nli eth1 'udp': 13:03:17.277327 IP 192.168.123.5.1065 > 192.168.5.112.53: 43653+ A? lpi.org. (25) 13:03:17.598624 IP 192.168.5.112.53 > 1...

DNSSEC is used for? A. Encrypted DNS queries between nameservers. B. Cryptographic authentication of DNS zones. C. Secondary DNS queries for local zones. D. Defining a secure DNS section. E. Querying...

What needs to be done to enable 32 bit I/O transfer mode for (E)IDE disks, on a system running a 2.4 series Linux kernel? A. The Linux kernel must be recompiled. B. The sysctl utility must be used. C...

What command must be used to create an ext3 file-system? A. mkext3fs B. mkjfs C. mke3fs D. mke2fs E. mkext2fs

Which of these tools can provide the most information about DNS queries? A. dig B. nslookup C. host D. named-checkconf E. named-checkzone

What is the command to add another IP address to an interface that already has (at least) one IP address? A. ifconfig eth0:1 192.168.1.2 B. ifconfig eth0 192.168.1.2 C. ipconfig eth0:1 192.168.1.2 D....

A network client has an ethernet interface configured with an IP address in the subnet 192.168.0.0/24. This subnet has a router, with the IP address 192.168.0.1, that connects this subnet to the Inter...

Which ONE of the following wireless tools can be used to check the wireless network link quality? A. iwconfig B. iwlink C. iwscan D. iwifi

A Linux machine freezes during boot. To boot directly to a shell prompt so that editing of files and manual starting of services is possible which command line must be passed to the kernel for the boo...

To make a system backup, the simplest and fastest way is to use the tar command. Select the correct alternative below that shows the three tar parameters that create, list and expand a tar file respec...