Question

QUESTION 32

1. Which of the following is assigned the task of providing individual users access to the Internet?

   	a.	ICANN
   	b.	Access ISPs
   	c.	Tier-1 ISPs
   	d.	Tier-2 ISPs

2.5 points   

QUESTION 33

1. Ethernet is a means of implementing which of the following network topologies?

   	a.	Bus
   	b.	Star
   	c.	WiFi

2.5 points   

QUESTION 34

1. Which of the following is not a means of performing interprocess communication over a network?

   	a.	Client/server
   	b.	ICANN
   	c.	Peer-to-peer

2.5 points   

QUESTION 35

1. NOT NULL means no value.

   True

   False

2.5 points   

QUESTION 36

1. The ALTER TABLE keywords are used to modify columns in an existing table.

   True

   False

2.5 points   

QUESTION 37

1. Which of the following is not a protocol used in the basic TCP/IP software hierarchy?

   	a.	TCP
   	b.	IP
   	c.	POP3
   	d.	UDP

2.5 points   

QUESTION 38

1. The AS keyword is used to create an alias.

   True

   False

2.5 points   

QUESTION 39

1. Given the relation X below
   
         X:      A      B      C
               2      5      7
               3      3      3
               4      3      2
               5      2      8
   what value will be extracted by the following query?
   TEMP ¬ SELECT from X where B > C
         RESULT ¬ PROJECT A from TEMP

   	a.	5
   	b.	2
   	c.	3
   	d.	4

2.5 points   

QUESTION 40

1. Which of the following connects existing networks to form an internet?

   	a.	Router
   	b.	Switch
   	c.	Bridge
   	d.	Repeater

Answer 1

32) Access ISPs
33) Bus
34) ICANN
35) False.  (NULL means no value)
36) True
37) POP3
38) True
39) d.  4
40) Router