May 30, 2008

can you help me with these questions?


Take evaluation - the final exam - IT Essentials II - Operating Systems Network (version 2.0)



Time Left:






1 193.8.8.8 is an example of the class of IP addresses?



B C D





2 What phrase best describes the scalability of a system?

ability to maintain its services if the components or processes fail
ability to provide our services still under heavy
ability to respond to customer requests for access to server-based
data capacity to grow without performance degradation




3 The ping command is used to test network connectivity. What is the best ping IP address for this test?

address DNS
address loopback
NIC local address
default gateway address




4 What part of the OS, loaded into memory at boot time, manages devices?

filesystem

user interface application software kernel





5 What must be done before an administrator ' install a software upgrade on a production server?

close the network
obtain written permission from the manufacturer
restart the server
test results on a test server




6 What is one of the main advantages of a star topology?

It requires very little wiring.
problems are more easily identified and are generally isolated to a segment of cable.
wiring may extend over long distances without loss of signal.
It requires no special devices such as hubs, switches and routers.




7 Which list of IP addressing information, DHCP server offer?

IP address, NetBIOS, subnet mask
subnet mask, web server IP address, DNS IP address
DNS IP address, IP address, mask under
-network IP address, IP address DNS, web server IP address




8 What is used to measure the speed of processors today?

MHz
GHz
octet
MB




9 What is characteristic of a TCP SYN attack?

many connections semi-open
a large number of illegal pings
several servers that are sending large amounts of data
many scans port for research open ports on the server




10 What is the type of backup can select only those files that have changed since the last backup and delete the file markers indicating that they have been saved?


partial differential
incremental
complete




11 Which of the following statements would file system standard types that Linux uses during an installation? (Choose two.)

NTFS
FAT16
FAT32
ext2
ext3
VFAT




12 Which of the following are characteristics of UDP? (Choose three.)

Unreliable
quickly
often used in workstations diskless
will broadcast the event of error



13
What a beneficial element of preemptive multitasking?

Applications Share the use of processor time by the cut.
The processor dynamically adjusts the amount of memory needed by the application programs.
application programs share memory addresses and exchange information.
The operating system controls the allocation of CPU time.




14 Linux command which is used to create partitions on a hard drive?

mkdev
fdisk
mkfs
fsck




15 Which of the following statements are characteristic of routers? (Choose three.)

They contain tables with network addresses.
They determine the optimal destination routes to other networks.
They are faster than switches and bridges.
They can be computers with special software installed the network.
They can be active or passive.

2 comments:

backup guy said...

(From old blog's comments)
answer is NO. looks like someone was not his homework too Day? huh

backup guy said...

(From old blog's comments)
1) C
2) the ability to grow without performance degradation
3) default gateway address
4) kernel
5) test results on a test server
6) The problems are more easily identified and are generally isolated to a segment of cable
7) DNS IP address, IP address, subnet mask
8) GHz
9) many scans port for research open ports on the server
10) progressive
11) FAT32
ext2 not sure about it.
12) rapid
often used in workstations diskless
will broadcast the event of error
13) Share the use of the processor by time slicing
14) mkdev
15) They contain tables with network address
They determine the optimal destination routes to other networks
They are faster than switches and bridges