Chapter 2: Server Types Flashcards
This chapter describes the common server types and the subsystems that are most likely to be the source of a performance bottleneck.
Server scalability is generally achieved by adopting either _________ or __________ strategies
Scale-out
Scale-up
What is Scale-up?
server type subcomponents are increased in capacity to meet the increase in demand.
What is Scale-out?
multiple separate servers function together to perform a given task, often seen from the outside as a single system.
How is Scale-out is generally achieved?
Tthrough a form of load-balancing and task
distribution. For
‘What type of scaling is appropriate for File server?’
‘Scale-out’
‘What type of scaling is appropriate for Print servers?’
‘Scale-up’
‘What type of scaling is appropriate for Terminal servers?’
‘Scale-out’
‘What type of scaling is appropriate for Web servers?’
‘Scale-out’
‘What type of scaling is appropriate for E-mail servers?’
‘Scale-up’
‘What type of scaling is appropriate for Database servers?’
‘Scale-up’
‘What type of scaling is appropriate for Computation servers?’
‘Scale-out’
Domain controllers perform what three functions?
User authentication
Resource access validation
Security control
The subsystems that have the most impact on file server performance are?
Network
Memory
Disk
On an Active Directory domain controller, there are two kind of activities
Server-to-server activities
Client-to-server activities
On a file server, what might create a bottleneck due to heavy workload?
The network subsystem, particularly the network interface card or the bandwidth of the LAN itself
Insufficient memory on a file server can limit the ability to do what?
Cache files
The subsystems that have the most impact on print server performance are?
Memory
Disk
Processor
What might help to reduce printing workload on a print server?
Implementing printer pools and virtual printer configurations
The subsystems that have the most impact on database server performance are?
Memory
Disk
Processor
Network
What is among the most important components in a database server?
Buffer Caches
It is important to configure a sufficient number of disk drives to match what in Database Servers?
CPU processing power
With most database applications, more drives equals?
Greater Performance
Database servers are ____________ applications.
Multi-threaded
What subsystem tends to be the least important on a database server?
The networking subsystem
In database servers, the design of ___________ is critical
The Application
The important subsystems for e-mail servers are?
Memory
CPU
Disk
Network
If Web site content is static, the following subsystems might be sources of bottlenecks?
Network
Memory
CPU
If the Web server is computation-intensive, then the following subsystems might be sources of bottlenecks?
Memory
Network
CPU
Disk
The following are key elements in Web 2.0 servers that are relevant when defining a Web 2.0 application or service?
Price/performance per watt Fast, large scale-out deployment Compute density Customization Targeted workloads
The elements that are important to examine in a Web 2.0 server are?
Network
Memory
Important subsystems in a groupware server are?
Memory
CPU
Disk I/O
Groupware servers require significant CPU power similar to what other server type?
E-mail servers
If you are streaming audio, the most probable sources of bottlenecks are?
Network
Memory
Disk
If you are streaming video, most important subsystems are?
Network
Disk I/O
Memory
Disk is more important than _______ for a video server due to the volume of data being transmitting and the large amount of data being read.
Memory
The most popular communication server is?
Windows 2003 remote access services (RAS) server.
The potential subsystem bottlenecks for a communicate server are?
Communication lines
Digital communications
Port configuration
The following subsystems are the most probable sources of bottlenecks in Terminal Servers
Memory
CPU
Network
What is the working set?
The number of instructions and data that are frequently accessed by the CPU.
Infrastructure servers is the name given to what services?
DNS, DHCP, WINS, and other services that provide connectivity.
Important subsystems in a DNS Server include?
Network
Memory
Because of the nature of DNS serving, the _________ subsystem is the least likely to cause a bottleneck.
Processor
Important subsystems in a DHCP Server include?
Network
Disk
Memory
Because of the nature of DHCP serving, the _________ subsystem is the least likely to cause a bottleneck.
Processor
Important subsystems in a WINS Server include?
Network
Disk
Memory
Because of the nature of WINS serving, the _________ subsystem is the least likely to cause a bottleneck.
Processor
Potential bottlenecks on the virtual operating system are?
Memory
CPU
Network
Computation servers provide ____________ and memory resources to compute-intensive applications such as those found in high-performance computing (HPC)
floating-point
Potential bottlenecks on the virtual operating system are?
Memory
Network
CPU
