Sunday, August 2, 2009

Can you help me with these questions?

Take Assessment - Final Exam - IT Essentials II - Network Operating Systems (Version 2.0)











Time Remaining:




















1 193.8.8.8 is an example of which class of IP address?





A


B


C


D














2 Which phrase best describes scalability in a system?





ability to sustain its services if components or processes fail


ability to deliver NOS services consistently under heavy load


ability to respond to client requests for access to server databases


ability to grow without degradation in performance














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





the DNS address


the loopback address


the local NIC address


the default gateway address














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





file system


user interface


application software


kernel














5 What should an administrator do before installing a major software upgrade on a production server?





shut down the network


obtain written permission from the manufacturer


reboot the server


test the results on a test server














6 What is one major advantage of a star topology?





It requires very little cabling.


Problems are more easily identified and are typically isolated to one cable segment.


Cabling can extend over great distances without loss of signal strength.


It does not require any special devices such as hubs, switches, or routers.














7 Which list of IP addressing information can the DHCP server supply?





IP address, NetBIOS, subnet mask


subnet mask, web server IP address, DNS IP address


DNS IP address, IP address, subnet mask


IP address, DNS IP address, web server IP address














8 Which unit is used to measure the speed of today's CPUs?





MHz


GHz


byte


MB














9 What is characteristic of a TCP SYN attack?





a large number of half-open connections


large numbers of illegal pings


multiple servers that are sending large amounts of data


numerous port scans looking for open ports on the server














10 Which type of backup will select only those files that have changed since the last backup and clear the file markers indicating they have been backed up?





partial


differential


incremental


full














11 Which of the following would be standard file system types that Linux would use during an installation? (Select two.)





NTFS


FAT16


FAT32


ext2


ext3


VFAT














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





unreliable


fast


often used in diskless workstations


will retransmit on error














13 What is a beneficial feature of preemptive multitasking?





Applications share the use of the processor by time slicing.


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 processor time.














14 Which Linux command is used to create partitions on a hard disk?





mkdev


fdisk


mkfs


fsck














15 Which of the following are characteristics of routers? (Select three.)





They contain tables with network addresses.


They determine optimal destination routes to other networks.


They are faster than switches and bridges.


They can be computers with special network software installed.


They can be active or passive.

Can you help me with these questions?
answer is NO. looks like someone wasn't doing his homework partying too much? huh
Reply:1) C


2) ability to grow without degradation in performance


3) the default gateway address


4) kernel


5) test the results on a test server


6) Problems are more easily identified and are typically isolated to one cable segment


7)DNS IP address, IP address, subnet mask


8)GHz


9)numerous port scans looking for open ports on the server


10)incremental


11) FAT32


ext2 NOT Sure on this one.


12) fast


often used in diskless workstations


will retransmit on error


13) Applications share the use of the processor by time slicing


14) mkdev


15) They contain tables with network addresses


They determine optimal destination routes to other networks


They are faster than switches and bridges


No comments:

Post a Comment