readnews

by: Chris Bryant

Knowing routing theory and routing protocols has always been a big part of earning your CCNA and CCNP certifications. According to Microsoft’s exam blueprints for the Server 2008 certification exams, that knowledge will also serve you well on your Microsoft exams.

The topic outline for the Configuring Windows Server 2008 Network Infrastructure exam (70-642) specifically mentions routing and routing protocols as exam topics. Specifically mentioned are RIP, OSPF, and static routing - three topics every CCNA and CCNP candidate will be well prepared to handle!

IPSec isn’t part of the CCNA exam, but you’ll see it on at least one CCNP exam, and it’s also listed as a 70-642 exam topic. IPv6 and IPv4 addressing are both covered on the 70-642 as well.

Microsoft’s website lists the following major skills you should expect to see on this exam:

Configuring IP addresses and Services (routing with RIP and OSPF, static routing, persistent routing, addressing, DHCP and DHCP options including relay agents, IPSec policies, Authentication Header and Encapsulating Security Payload, subnetting, supernetting)

Configuring Name Resolution (DNS configuration, zones, records, replication, and integration with Active Directory, and client computer name resolution techniques)

Configuring Network Access (includes NAT, VPNs, RADIUS, 802.1x authentication, MS-CHAP, firewalls, and remote authentication)

Configuring File And Print Services (self-explanatory)

Monitoring And Managing A Network Infrastructure (includes SNMP and Windows Server Update Services)

Your CCNA and CCNP preparation will not quite be enough to get you past this exam, but as you can see, it’ll give you a great head start!

source:

Aims of defragmentation

Reading and writing data on a heavily fragmented file system is slowed down as the time needed for the disk heads to move between fragments and waiting for the disk platter to rotate into position is increased (see seek time and rotational delay). For many common operations, the performance bottleneck of the entire computer is the hard disk; thus the desire to process more efficiently encourages defragmentation. Operating system vendors often recommend periodic defragmentation to keep disk access speed from degrading over time.

Fragmented data also spreads over more of the disk than it needs to. Thus, one may defragment to gather data together in one area, before splitting a single partition into two or more partitions (for example, with GNU Parted, or PartitionMagic).

Defragmenting may help to increase the life-span of the hard drive itself, by minimizing head movement and simplifying data access operations.