Which of the following statements is the most accurate?
Options: The degree to which information needs to be summarized increases as one moves up through the management levels, Low-level managers made unstructured decisions, Upper managers make unstructured decisions, Low-level managers need general information about operating activities.
. Which of the following does not occur during the power-on-self-test (POST)?
Options: a. The scandisk utility begins to run
b. The video card and video memory are tested
c. The BIOS identification process occurs
d. Memory chipare checked to ensure that they are working properly
To enable EIGRP, which of the following would you use? Router1(config-if)# ipv6 ospf 10 area 0.0.0.0 Router1(config-if)# ipv6 router rip 1 Router1(config)# ipv6 router eigrp 10 Router1(config-rtr)# no shutdown Router1(config-if)# ipv6 eigrp 10
Options: Database – File – Record – Fields – Bytes – Bit
B. Database – File – Record – Fields – Bit – Bytes
C. Database – Record – File – Fields – Bytes – Bit
D. Database – Record – Fields – File – Bytes – Bit
Ans:– A ,
Which of the following column properties specifies whether or not cells in a column must contain a data value?
Options: Null status, Data type, Default value, Data constraints
Options: There are no public instance variables., All persistent values are accessed using getxxx and setxxx methods., It may have many constructors as necessary., All of the above are true of a Java bean.
Which of the following are integrity controls that a DBMS may support?
Options: Assume a default value in a field unless a user enters a value for that field., Limit the set of permissible values that a field may assume., Limit the use of null values in some fields., All of the above.
Options: A scripting language that states the rules for tagging elements., A programming language that states the rules for tagging elements., A programming language that allows the creation of customized tags., A scripting language that allows the creation of customized tags.
Ethernet networks can be cabled in a number of topologies, depending on what works best in each environment. As more nodes are added, the efficiency of Ethernet decreases. Select the best answer as to why Ethernet becomes less efficient as size increases.
Options: Network collisions occur, Repeaters cannot increase the signal strength sufficiently, Cable terminators do not reflect the signal properly, Cable terminators do not absorb the signal properly
Your router has the following IP address on Ethernet0: 172.16.2.1/23. Which of the following can be valid host IDs on the LAN interface attached to the router? 172.16.1.100 172.16.1.198 172.16.2.255 172.16.3.0
Options: 1 only, 2 and 3 only, 3 and 4 only, None of the above