CCT PB Flashcards
What are 2 Cisco Nexus 3400 series switches that support 400 Gbps ethernet ports?
Cisco Nexus 3432D-S
Cisco Nexus 3408-S
What type of transceiver module is used for a 40 gigabit Ethernet connections?
QSFP+
Cisco NX-OS has added the ability to use which type of custom scripting to help manage user networks?
Python
What does Cisco use for Return Materials Authorization tracking of field-replaceble ports?
RMA Number
What 3 locations can be configured as a source for the IOS image in the boat system command?
Flash
TFTP Server
ROM (last resort)
*Describe how to set a static IP address to an Ethernet Port on a computer
Network and sharing center
Change adapter
Local Area Connection
Select IP (TCP/IP) > Properties
Use the following address
Enter and configure IP info
From the Network and Sharing Center, click Change adapter, then double-click a local area connection. Select Internet Protocol (TCP/IP) > Properties > Use the Following Address, and then configure the IP information
What are 2 statements about Smart Jack?
Provides signal conversion
Regenerates the signal to compensate for signal degradation from line transmission
What command displays the configuration register setting?
sh ver
show version
or show hardware
What command displays info about the carrier network, cell site, and available services?
Sh cellular unit network
What happens when you use the “copy running-config startup-config” command on your IOS device?
The configuration in RAM will replace the config in NVRAM
(Non-Volatile Random-Access Memory)
What command provides detailed info about the components that are installed on a router, such as the model, PID,and serial number?
sh inventory
What is the line speed of a DS0 in north america?
64 kbps
What are 2 standard fiber-optic connectors?
Lucent (LC)
Subcriber (SC)
SC connectors are older and larger in size compared to LC connectors
How many pairs of copper wire does a UTP cable have?
4
What type of port on a laptop is used to connect to an ethernet port on a Cisco switch?
RJ-45
What layer in the OSI model is responsible for determining the availability of the receiving program and checking to see if enough resources exist for that communication?
Application Layer
How are IPv6 addresses abbreviated (notation)?
a / notation
Ex. 2001:0DB8::/128
Name a DTE device…
Router
What command initiates the file transfer of a Cisco IOS image over IP from ROMMON (ROM Monitor)?
tftpdnld
What are 2 components of a WAN connection?
CSU/DSU
Router
What is the difference between a CSU/DSU and a modem?
CSU/DSU converts digital signals from a router to a leased line
A modem converts digital signals from a router to a phone line
What’s the primary method (command) for recovering or upgrading a Cisco network device system image?
the tftpdnld command
What 2 commands set the configuration register value?
rommon>confreg 0x2102
router(config)#config-register 0x2102
What 2 pins does an RJ-45 connector use to transmit data?
Pins 1 & 2
What address facilitates the routing of packets over an IP network?
Network Address
What type of memory is used to permanently store Cisco IOS?
flash
What are 2 pairs of LAN ethernet devices that use an RJ-45 straight through cable?
switch to router
switch to server
What command initiates the copying of a Cisco IOS image to a Cisco device?
copy tftp flash
What 2 sets of pins are looped on an RJ-45 56K loopbacks plug?
pins 2 & 5
pins 1 & 4
What interconnection cable can you use when you use a MDI connection?
crossover
What protocol does tftp typically use for transport?
UDP
What port does Telnet use?
23 TCP
What does SSH do?
Protocol that provides a secure remote access connection to network devices
Method for securely sending commands to a computer over a unsecured network
What are 2 commands for copying a saved configuration to RAM?
copy startup-config running-config
copy tftp running-config
Name 3 tools to prevent ESD (static electricity/electric current)…
Anti-static bag
Anti-static mat
ESD/Anti-static wrist strap
What device can be configured as a TFTP server?
Cisco router
What are 2 features that are associated with single-mode fiber optic cables?
Consists of a single strand of glass fiber
Carries a higher bandwidth than multimode fiber
What are two IPv4 addresses that can be assigned to a host computer?
10.1
192.168
How many wire pairs does 1000BASE-T UTP cable have?
It uses 4 wire pairs
(Both ends of the cable can support, transmit, and receive simultaneously)
What’s the default operations mode when you initially log in to a router?
User EXEC mode: This is the first level of access.
From the enable mode, which command loads the configuration during the password recovery process on a Cisco router?
copy startup-config running-config
What 2 ports on a laptop are used to gain console access to a Cisco switch?
DB-9 & USB
What command shows the status of power supplies and sensor temps?
show environment
What router port is used for dial-in access to the router for CLI management purposes and doesn’t usually pass normal network traffic?
AUX
What are 2 purposes of a USB thumb drive?
copy config files to and from a PC
copy IOS images to and from a PC
What two pieces of information are displayed when you use the show IP interface brief command?
Layer 3 addresses
Interface status
What configuration register value can you set on a Cisco device so it ignores the NVRAM when it boots?
0x2142
What type of Cisco console cable is used to connect a laptop to the console port on a Cisco router?
Rollover
What type of memory stores the decompressed form of Cisco IOS software and the running configuration?
DRAM
(Dynamic random-access memory)
What 2 commands can identify the serial number of a Cisco router?
sh inventory
sh version
What layer of the OSI model defines how data is formatted for transmission and how access to the physical media is controlled?
Layer 2: Data Link
The colored wires at one end of a cable are in reverse sequence to the colored wires at the other end of the cable. What cable does this configuration describe?
Rolled
What bits represent the boot field in the configuration register value?
Lowest 4 bits (3,2,1,0)
At the interface configuration prompt, which command returns you to the main configuration prompt?
exit
What method is the fastest way to recover a software version that supports a USB flash port on a Cisco device?
copy command with USB memory
When you deploy Cisco Catalyst 3850 series switches, which 2 modes of operation can you choose from?
Install mode & Bundle mode
What command displays a list of file systems that are available on Cisco devices?
sh file system
What are 2 pieces of information about a neighboring device that are displayed when you use the CLI command show cdp neighbor?
Platform and Device ID
What Xmodem option is used to enhance error checking of an image that is copied to flash memory?
-C
What command sends an echo request packet to the target host and then waits for an echo response message?
Ping
What type of memory stores the configuration of a router or switch by default?
RAM
An ethernet interface is up and the line protocol is down. What are 2 possible causes?
There is a speed or duplex mismatch with the remote device.
There is a Layer 2 mismatch in the encapsulation type.
What type of physical connector does a Gigabit ethernet port typically use?
RJ-45
What Cisco CPAK 100GBase module supports Multimode Fiber?
Cisco CPAK-100G-SR4
What is the binary sequence that begins a unique local IPv6 address?
1111110
What type of cable is used to connect a laptop to an Ethernet port on a Cisco router?
Straight-through
What are the NVRAM features on a Cisco device?
Not erased when device is rebooted
Stores startup configuration
Which modules can be plugged into internal advanced integration module (AIM) slots on a Cisco router?
Intrusion Detection System Module
Virtual Private Network Module
Which pieces of information about a device can be seen from the show version command?
Device model
Installed DRAM
Installed flash
Which commands display the saved configuration file?
show startup-config
show configuration
Which of the following best describes the cable that is used to connect a laptop to an Ethernet port on a Cisco router?
Crossover
Which type of memory is necessary for a router to boot?
DRAM
Which type of memory stores the startup configuration file for the Cisco device?
NVRAM
Which interface card is an encryption module?
AIM-VPN/SSL-3
On which three operating systems does HyperTerminal not come pre-installed?
Windows Vista
Windows 7
Mac OSX
What are two ways to open a command prompt session on a Windows-based computer?
Click Start > Run. Enter cmd and click OK
Click Start > All Programs > Accessories > Command Prompt
Which three of the following statements are true…
A. 172.16.1.18 is a Class A address
B. Each IP address has two parts: a network ID and a host ID
C. An IP subnet equals a broadcast domain.
D. A subnet address is created by borrowing bits from the original host ID
E. An IPv4 address contains 36 bits
B
C
D
Which of the following statements are true?
A. At the network module level, the model number is the same as the part number.
B. OEM products that are built for Cisco never get a Cisco logo applied.
C. Serial numbers are attached by label on all Cisco field-replaceable parts.
D. The Cisco logo, old or new, can be found on the front bezel of all Cisco rack-mountable or desktop products.
A
D
When using a modem to provide out-of-band access to a Cisco router, which cable is used to connect the modem to the router?
DB-25 to RJ-45
Which command indicates the amount of memory (NVRAM, RAM, and flash) in a Cisco device?
show version
When using a modem to provide out-of-band access to a Cisco router, which cable type is used to connect the wall jack to the modem?
RJ-11 to RJ-11
Which IOS layer does a server use to keep track of which application communications in which conversation?
Session
Which command can be used to identify the serial number of a Cisco router?
show version
Which three of the following statements are true about a router?
A. It manages and analyzes a company’s database.
B. It forwards broadcast frames.
C. It chooses the best route for your data to travel.
D. It divides a network into separate broadcast domains.
E. It interconnects multiple networks together.
C
D
E
TFTP is a simple protocol files, such as a Cisco IOS or configuration file, from one device to another. What device cannot be configured to be used as a TFTP server?
Modem
A null modem cable uses which adapter type?
RJ-45
What settings must be configured on a laptop’s Ethernet port to connect to a Cisco device? (3)
a) IP address
b) Subnet mask
c) Default gateway
d) Kernel version
e) MAC address
A
B
C
What’s the correct RJ45 loop-back plug pinout configuration for testing a Cisco router Ethernet port?
Pins 1 and 2 connected to Pins 3 and 6
Which methods can be used to perform a software upgrade on a Cisco device?
a) TFTP
b) Xmodem
c) Bluetooth
d) NFC
e) FTP
A
B
E
Performing a software downgrade using xmodem typically requires access to which router mode?
a) Router Configuration mode
b) ROMMON mode
c) Bootloader mode
d) Setup mode
B. ROMMON mode
Which settings must be correctly configured to establish a connection using an Ethernet cable from a laptop to Cisco equipment? (3)
a) IP address
b) Encryption type
c) Subnet mask
d) Default gateway
e) Cable type
A
C
D
What subnet mask would typically be used with a Class C IPv4 network?
255.255.255.0
Cisco IOS-XR is tailored for __________, offering modular processes and fault containment.
a) desktop management
b) service provider networks
c) small businesses
d) wireless communication
B. Service provider networks
What should be tested when diagnosing Ethernet Layer 2 issues related to speed?
Port speed settings
Duplex settings
How is the configuration register typically changed for a password recovery process on a Cisco router?
By setting the register to 0x2142
