Chapter 11 Flashcards
While troubleshooting a recurring problem on your network, you will want to examine the TCP messages being exchanged between a server and a client. Which tool should you use?
Wireshark
One of your coworkers downloaded several, very large video files for a special project she’s working on for a new client. When you run your network monitor later this afternoon, what list will your coworker’s computer likely show up on?
Top listeners
What command requests the next record in an SNMP log?
SNMP Get Next
What port do SNMP agents listen on?
Port 161
Your roommate has been hogging the bandwidth on your router lately. What feature should you configure on the router to limit the amount of bandwidth his computer can utilize at any one time?
Traffic Shaping
What field in an IPv4 packet is altered to prioritize video streaming traffic over web surfing traffic?
Diffserv
When shopping for a new router, what does the MTBF tell you?
How long devices like this one will last on average until the next failure
Which feature of a network connection between a switch and server is not improved by link aggregation?
Speed
Which power backup method will continually provide power to a server if the power goes out during a thunderstorm?
Online UPS
Which type of disaster recovery site contains all the equipment you would need to get up and running again after a disaster, and yet would require several weeks to implement?
Cold Site
When you arrive at work one morning, your inbox is full of messages complaining of a network slowdown. You collect a capture from your network monitor. What can you compare it to in order to determine what has changed?
Network Baseline
What file must be accessed in order to analyze SNMP logs?
MIB (Management Information Base)
What kinds of alerts can you program your network monitor to send to IT staff when it detects specific, problematic conditions?
Email, text, or new support tickets
Which QoS technique operates at Layer 2 to more efficiently route Ethernet traffic between VLANs?
CoS (Class of Service)
Which fields are modified in IPv4 and IPv6 packets to help prioritize traffic for QoS?
DiffServ for IPv4
Traffic Class for IPv6
What protocol is most often used to bond ports between a switch and a busy server?
LACP (Link Aggregation Control Protocol)
What type of adapters are required on servers in an FCoE storage network?
CNA (Converged Network Adapters)
Why might you want to install two power supplies in a critical server?
If one power supply fails, the other can take over.
What are the two main categories of UPSes?
Standby UPS system / Online UPS system
What is the primary goal of disaster recovery? (proper term)
Business continuity
At what point is a packet considered to be a giant?
It becomes a giant when it exceeds the medium’s maximum packet size.
Packets that are smaller than a medium’s minimum packet size are known by what term below?
Runts
When a device handles electrical signals improperly, usually resulting from a bad NIC, it is referred to by what term below?
Jabber
