20 MCQ's

1. What service daemon can be configured and started so that linux supersuser does not have to manage and assign static ip addresses to a network host?

2. The linux firewall daemon iptables can enforce rules on all the following chains except input output route forward

3. As a security measure, all tcp services are protected by tcp wrappers, what two files make up the tcp wrappers?

4. After linux uses the secure shell command to generate a pair of public and private keys what should the user do with the public key?

1. The secure shell daemon, sshd listens wha tcp port?

2. A user with the name jsmith will have the default directory ___ assigned to him for private use

3. The first line of a Linux Bash script must be ____

4. When using the chmod command in numeric mode, the permission r-- can be represented by what number?

1. You can manage groups by using the following commmnads except___ group add,group mod, group del, group rm

2. The linux firewall daemon ipt ables can enforce rules on all the following chains except input

3. After linux uses the secure shell command to generate a pair of public and private keys what should the user do with the public key?

4. A user with the name jsmith will have the default directory ___ assigned to him for private use

1. Convert 5.00 x 102 milliliters to quarts. Hint: (1L = 1.06 qt)
A) 1.88 qt
B) 0.472 qt
C) 0.528 qt
D) 4.72 × 105 qt

2. Which of the following are isotopes?
A) 14C and 13C
B) 14C and 14N
C) 14N and 14N3-
D) 12C and 12CO

3. What is the empirical formula for C10H22O2?
A) C10H22O2
B) C5H11O
C) C20H44O4
D) C2H11O 

4. Which one of the following elements is most likely to form a 2+ ion?
A) calcium
B) carbon
C) fluorine
D) oxygen 

1. What is the formula for the ionic compound containing barium ions and sulfate ions?
A) BaSO4
B) Ba2SO4

C) BaS
D) Ba(SO4)2
E) Ba3S2

2. Which of the following are isotopes?
A) 14C and 13C
B) 14C and 14N
C) 14N and 14N3-
D) 12C and 12CO

3. What is the empirical formula for C10H22O2?
A) C10H22O2
B) C5H11O
C) C20H44O4
D) C2H11O 

4. Convert 5.00 x 102 milliliters to quarts. Hint: (1L = 1.06 qt)
A) 1.88 qt
B) 0.472 qt
C) 0.528 qt
D) 4.72 × 105 qt