Subnetting uses custom rather than the default subnet masks. This is also known as classless addressing. In other words, the subnet cannot be assumed just by looking at the address.
5.2 What is an alternate IP configuration?
--root domain (.)
--Top level domains (TLDs) such as .com, .edu, .gov...
1. look in local cache
2. checks hosts file
3. contacts dns
4. sends the name info to DNS.
5. DNS checks its own zone cache and hosts file. if nothing goes to other zones it holds.
6. DNS server requests info from the top-level domain server. The server returns the address of a DNS server with the info for the next highest domain.
7. DNS server places info in its cache. The client places the info in its cache and then goes to destination.
1. Address of known network
2. interface or next hop router used to reach the destination network.
3. A cost value (metric) that identifies the desirability of the route to the destination network.
4. A timeout value that identifies when the route expires.
4.1 what are optional
bits to pad?
workstation/router to hub/switch
regular port on hub or switch to uplink port on a hub or a switch.
RJ45 to serial (RS-232) Connect the serial port on a workstation to a console connector on a router or switch. OR RJ45 on both ends and then serial adapter.
4.3When connecting devices, crossover must be performed an ____ number of times.
to define a default route. If this is not defined, a router will just drop packets it doesn't know about.
0.0.0.0 with a mask of 0.0.0.0 identifies a default route in the routing table.
It modulates digital data from the PC into analog data and transmits it on a telephone network.
It demodulates analog data from a telephone network into digital PC data.
3.1 Which of the following is a valid MAC address?
3.2 Your company purchases a new bridge, which filters packets based on the MAC address of the destination computer. On which layer of the OSI model is the device functioning?
3.3 Which two of the following tasks do routers perform?
a.Control access to the transmission media
b.maintain info about paths through an internetwork
c.route data based on logical network addresses.
d.multiplex signals onto the same transmission media
e. identify devices through hardware addresses.
route data based on hardware device addresses.
4.1 Which of the following use CSMA/CD access method?
4.2 Which gigabit ethernet standard can support long network segments up to a maximum of 5 km when used with single mode fiber-optic cable?
4.2 You have been tasked with designing a high-speed ethernet entwork. Your client's building already has 150-ohm shielded twisted pair (STP) wiring installed. Due to budget constraints, they have asked you to reuse the existing wiring instead of installing new fiber-optic cabling. Which ethernet standard could you implement in thsi situation?
1000BaseT, 1000BaseSX, 1000BaseCX, 1000BaseLX, 1000BaseZX, 10BaseFL
4.2 Which of the following standards is used by SONET?
You would like to implement 10 Gbps ethernet over a distance of 1 kilometer or greater. Which of the following would be the minimum requirement for the implementation? (Select 2)
a. 10GBaseER standards, b. 10GBaseSR standards, c. 10GBaseLR standards, d. Multimode fiber, e. single mode fiber
4.2 You have been tasked with designing an ethernet network. Your client needs to implement a very high-speed network backbone between campus buildings; some of which are around 300 m apart. Multimode fiber-optic cabling has already been installed between buildings. Yourclient has asked that you use the existing cabling. Which ethernet standard meets these guidelines? (Choose two)
a. 1000BaseSX, b. 10BaseFL, c. 1000BaseT, d. 1000BaseCX, e. 10GBaseER, f. 10GBaseSR
physical star/logical star
physical star/logical bus
4.3 You need to connect a workstation to a switch using a regular port on the switch (not an uplink port). The switch does not support auto-MDI.
Which type of cable should you use?
4.3 You want to connect the LAN port on a router to the uplink port on a switch. The switch does not support auto-MDI. Which type of cable should you use?
5.1 Your network has been assigned the Class C network address of 188.8.131.52. Which three of the following addresses can be assigned to hosts on this network?
184.108.40.2067, 220.127.116.11, 18.104.22.168, 22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206
5.1 Which of the following is the first IP address that can be assigned to hosts on the 220.127.116.11 network using the default subnet mask?
18.104.22.168, 22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206
5.1 Your network has been assigned the Class B address of 220.127.116.11. Which of the following is not an address you can assign to a node on your network.
18.104.22.168, 22.214.171.124, 126.96.36.199, 188.8.131.52
5.1 What is the decimal format of the following binary IP address?
5.4 Which of the following best describes OSPF?
1. classless distance vector routing protocol.
2. classful distance vector routing protocol.
3. classful link-state routing protocol.
4. classless link-state routing protocol.
5.4 Which terms are often synonymous with or made possible with CIDR (two)
5.4 A router is connected to network 192.168.1.0/24 and 2.0/24. the router is configured to use RIP and has learned 3.0/24 and 4.0/24. There is no default route configured on the router.
The router receives a packet addressed to network 10.1.0.0/16. What will the router do with the packet?
prefix (first 64 bits)
interface ID (last 64 bits)
When the U/L is set to 0, the MAC is burned-in. When it is set to 1, MAC has been configured locally.
-6-to-4 tunneling for implementations across sites
-Teredo for tunneling between two hosts
creates logical groups of hosts-messages sent to the group are received by all group members.
Used for streaming video and audio (netmeeting or windows media viewer).