Skip to main content

Posts

Showing posts from December 6, 2008

CCNA 1 - Module 6

89,4% 1 How many bits make up an IPv4 address? 128 64 48 32 2 Refer to the exhibit. A network administrator has to develop an IP addressing scheme that uses the 192.168.1.0 /24 address space. The network that contains the serial link has already been addressed out of a separate range. Each network will be allocated the same number of host addresses. Which network mask will be appropriate to address the remaining networks? 255.255.255.248 255.255.255.224 255.255.255.192 255.255.255.240 255.255.255.128 255.255.255.252 3 Refer to the exhibit. The network administrator has assigned the internetwork of LBMISS an address range of 192.168.10.0. This address range has been subnetted using a /29 mask. In order to accommodate a new building, the technician has decided to use the fifth subnet for configuring the new network (subnet zero is the first subnet). By company policies, the router interface is always assigned the first usable host address and the workgroup server is given the last us

CCNA 1 - Module 7

1 Which options are properties of contention-based media access for a shared media? (Choose three.) **non-deterministic **less overhead one station transmits at a time **collisions exist devices must wait their turn token passing 2 What is a primary purpose of encapsulating packets into frames? provide routes across the internetwork format the data for presentation to the user **facilitate the entry and exit of data on media identify the services to which transported data is associated 3 Refer to the exhibit. How many unique CRC calculations will take place as traffic routes from the PC to the laptop? 1 **2 4 8 4 What is true concerning physical and logical topologies? The logical topology is always the same as the physical topology. Physical topologies are concerned with how a network transfers frames. Physical signal paths are defined by Data Link layer protocols. **Logical topologies consist of virtual connections between nodes. 5 Refer to the exhibit. Assuming that the network in t

CCNA 1 - Module 8

1 Which type of cable run is most often associated with fiber-optic cable? Xbackbone cable horizontal cable patch cable work area cable 2 In most business LANs, which connector is used with twisted-pair networking cable? BNC RJ-11 **RJ-45 Type F 3 When is a straight-through cable used in a network? when connecting a router through the console port when connecting one switch to another switch **when connecting a host to a switch when connecting a router to another router 4 With the use of unshielded twisted-pair copper wire in a network, what causes crosstalk within the cable pairs? **the magnetic field around the adjacent pairs of wire the use of braided wire to shield the adjacent wire pairs the reflection of the electrical wave back from the far end of the cable the collision caused by two nodes trying to use the media simultaneously 5 Which OSI layer is responsible for binary transmission, cable specification, and physical aspects of network communication? Presentation Transport Dat

CCNA 1 - Module 9

1 In the graphic, Host A has reached 50% completion in sending a 1 KB Ethernet frame to Host D when Host B wishes to transmit its own frame to Host C. What must Host B do? Host B can transmit immediately since it is connected on its own cable segment. Host B must wait to receive a CSMA transmission from the hub, to signal its turn. Host B must send a request signal to Host A by transmitting an interframe gap. **Host B must wait until it is certain that Host A has completed sending its frame. 2 Ethernet operates at which layers of the OSI model? (Choose two.) Network layer Transport layer **Physical layer Application layer Session layer **Data-link layer 3 Which of the following describe interframe spacing? (Choose two.) **the minimum interval, measured in bit-times, that any station must wait before sending another frame the maximum interval, measured in bit-times, that any station must wait before sending another frame the 96-bit payload padding inserted into a frame to achieve a lega

CCNA 1 - Module 10

Options With Highlight Colours are Correct Answer 1. Refer to the exhibit. A student working in the lab selects a cable that is wired as shown. Which connection types can successfully be made with this cable? (Choose two.) connecting a PC to a router's console port connecting two routers together via their fast ethernet ports connecting two switches together at gigabit speeds connecting a PC to a switch at Gigabit Ethernet speeds connecting two devices with the same interface type at Fast Ethernet speeds 2. Which option identifies the primary interface which would be used for initial configuration of a Cisco router? AUX interface Ethernet interface serial interface console interface 3. What makes fiber preferable to copper cabling for interconnecting buildings? (Choose three.) greater distances per cable run lower installation cost limited susceptibility to EMI/RFI durable connections greater bandwidth potential easily terminated 4. A network administrator is required to use media

CCNA 1 - Module 11

Options With Highlight Colours are Correct Answer 1. Users in the network are experiencing slow response time when doing file transfers to a remote server. What command could be issued to determine if the router has experienced any input or output errors? show running-config show startup-config show interfaces show ip route show version show memory 2. Refer to the exhibit. A technician applies the configuration in the exhibit to a clean router. To verify the configuration, the technician issues the show running-config command in the CLI session with the router. What lines should the technician expect to see in the router output from the show running-config command? enable password classline console 0password ccna enable secret ciscoenable password classline console 0password ccna enable secret 5 $1$v0/3$QyQWmJyT7zCa/yaBRasJm0enable password classline console 0password ccna enable secret ciscoenable password 7 14141E0A1F17line console 0password 7 020507550A enable secret 5 $1$v0/3$QyQWm