BÀI TẬP TRẮC NGIỆM TIẾNG ANH MÔN HỆ ĐIỀU HÀNH LINUX_1 docx

BÀI TẬP TRẮC NGIỆM TIẾNG ANH MÔN HỆ ĐIỀU HÀNH LINUX- TRƯỜNG CD CÔNG NGỆ THÔNG TIN Chuyên ngành: Công nghệ phần mềm Năm học: 2010-2011 1.What is the most popular file system choice? A. ext2 B. bsdf C. jfs D. ext3 Answer: A 2.What steps need to be performed, to make a new disk accessible to users? Select three. A. fdisk B. mkfs C. mount D. stat E. quotaon Answer: A, B, C 3.Which THREE of the following commands are used when setting up and accessing a new filesystem on the hard drive? A. fsck B. mkfs C. mount D. fdisk E. format Answer: B, C D 4.The command mkfs -t ext3 /dev/hdb1 -T largefile creates what size of inode? A. 4 kilobyte B. 1 megabyte C. 2 megabyte D. 4 megabyte Answer: B 5.Which command will show the number of free and used inodes for your system's mounted file systems? A. du -i B. df -i C. ls -iR / D. freeinodes Answer: B 6.How many inodes are assigned to a file when it is created? A. 1 B. 2 C. 4 D. 8 Answer: A 7.What command with switches will display the disk utilization for all mounted file systems? A. df B. vmstat C. du D. top E. free Answer: A 8.What command with options will show the currently mounted filesystems usage in kilobytes? A. df -k B. df -h C. du -k D. du -h E. du -s Answer: A 9.Which of the following commands will print the inode usage on each mounted filesystem? A. du -i B. df -i C. lsfs -i D. printfs -i Answer: B 10.You need to create a symbolic link in the current user's home directory named Certkiller to the file /data/foobar. Choose the command that will accomplish this. A. link . Certkiller /data/foobar B. ln /data/foobar $HOME/ Certkiller C. ln -s /data/foobar ~/ Certkiller D. file link ./ Certkiller /data/foobar E. None of the above Answer: C 11.Which chown command will change the ownership to foo and the group to bar on a file named biglist? A. chown foo/bar biglist B. chown -u foo -g bar biglist C. chown foo:bar biglist D. chown user foo group bar biglist Answer: C 12.You have the following file: -rwxrwxr-x 1 foo root 0 Feb 23 07:48 /bin/foo Which of the following commands will change the owner of the file /bin/foofrom the foo userto the bar user without affecting group ownership? A. chown /bin/foo bar B. chown bar /bin/foo C. chown bar.foo /bin/foo D. chown.foo.bar /bin/foo Answer: B 13.Which of the following commands makes /bin/foo executable by everyone but only writable by its owner? A. chmod 557 /bin/foo B. chmod o +rwx, a+rx /bin/foo C. chown 557 /bin/foo D. chmod 755 /bin/foo Answer: D 14.You need to alter the permissions on the directory /home/mrbill and all it's contents to match the following permissions. drwxr r Which of these commands with options and arguments will accomplish this? Choose two. A. chmod 0744 /home/mrbill -R B. chmod 744 /home/mrbill/* C. chmod -R u=rwx,g=r,o=r /home/mrbill D. chmod u+rwx,g+r,o+r /home/mrbill Answer: A, C 15.What umask will set the file permissions on a newly created file to - rw-r r (644)? A. 0002 B. 0022 C. 0224 D. 0246 Answer: B 16.You want the default permissions for your files to be -rw-r .HOW must you set umask? A. 037 B. 640 C. 038 D. 027 Answer: A 17.After creating a new file, you notice that the permissions of the new file are -rw-rw-rw From this, you know that the value of the umask is what? A. 023 B. 000 C. 112 D. d111 E. 223 Answer: B 18.What are the default permissions for the Red Hat /etc/passwd file? A. 644 B. 640 C. 400 D. 641 E. 440 Answer: A 19.Which of the following are required in the /etc/passwd file when creating a user account? (Choose all that apply) A. login name B. userid C. default group D. password age E. minimum password length Answer: A, B, C 20.Which file contains information about filesystems and their respective mount points? A. /etc/mount B. /etc/fs_mount C. /etc/fstab D. /proc/fstab Answer: C 21.Which of the following programs can be used to the find the foo program in the.PATH and associated man pages, but not list every file containing foo on the system? A. which B. search C. slocate D. where E. whereis Answer: E 22.What command can be used to cause changes to the inittab file to take effect without a system reboot? A. init q B. init r C. inittab r D. inittab q Answer: A 23. Which of the following is a journaling filesystem? A. ext2 B. vfat C. minix D. ext3 Answer: D 24. The first ethernet card on a system is: A. eth0 B. etho0 C. eth1 D. hme0 Answer: A 25. You can find all of the services managed by xinetd by looking at which of the following file or directory? A. /etc/xinetd.d B. /etc/inetd.conf C. /etc/rc.d/init.d D. /etc/xinetd.conf Answer: A 26.What partition number always refers to the first logical partition? A. 0 B. 4 C. 1 D. 5 Answer: D 27.Which of the following files specifies information on what is NFS shared on your system? A. /etc/exports B. /etc/dfs/dfstab C. /etc/fstab D. /etc/sharetab Answer: A 28. What command could be used to find out which package owns the file /etc/aliases? A. rpm -qf /etc/aliases B. rpm -qp /etc/aliases C. rpm -e /etc/aliases D. rpm -qil /etc/aliases Answer: A 29. Which of these commands will list PCI devices? A. lsdevices B. lspci C. lsdev D. pcidev Answer: B 30. What command could be used to find all packages with the string 'mail' within the package name? A. find / -name '*mail*' B. rpm -qf /usr/bin/mail C. rpm -qa | grep mail D. locate mail Answer: C 31. On a system with 16MB RAM, the minimum size of your swap partition should be equal to how many MBs? A. 16 B. 32 C. 64 D. 100 Answer: B 32. On a new Linux installation, the partition mounted on where contains the operating system kernel? A. /boot B. /dev C. /kernel D. /bin Answer: A . BÀI TẬP TRẮC NGIỆM TIẾNG ANH MÔN HỆ ĐIỀU HÀNH LINUX- TRƯỜNG CD CÔNG NGỆ THÔNG TIN Chuyên ngành: Công nghệ phần mềm Năm học: 2 010 -2 011 1. What is the most popular. (address 19 2 .16 8.0 .1) so that it can communicate with the new subnet? A. route add 19 2 .16 8 .1. 0/24 19 2 .16 8.0.2 B. route add .net 19 2 .16 8 .1. 0 netmask 255.255.255.0 gw 19 2 .16 8.0.2 C. route add 19 2 .16 8 .1. 0. C. route add 19 2 .16 8 .1. 0 netmask 24 gw 19 2 .16 8.0.2 D. route add –net 19 2 .16 8 .1. 0/24 19 2 .16 8.0.2/32 E. route add 19 2 .16 8 .1. 0/255.255.255.0 gw 19 2 .16 8.0.2 Answer: E 41. You have created special