Cisco CCNA

Cisco CCNA Practice Exam Questions And Answers

Here are some free Cisco CCNA exam questions to get you thinking. We are going to ensure you are clear on router memory types. It is very easy to get tripped up on these types of questions in the Cisco CCNA exam due to pressure of time.

Let’s test your knowledge of Etherchannels, Voice protocols, and other important Cisco CCNA certification exam topics with these practice exam questions!
Cisco CCNA Certification:

1.You’ve just successfully bundled three separate physical trunks into an Etherchannel. What is the net effect on the overall port cost of these links?
A. The Etherchannel will have a single port cost, and it will be lower than that of the separate links.
B. The Etherchannel will have a single port cost, and it will be higher than that of the separate links.
C. The Etherchannel will have a single port cost roughly equivalent to that of the separate links.
D. Etherchannels do not have port costs.
Answer: A. The Etherchannel will appear in various Cisco switch commands as “port-channel0″, and this virtual interface will appear with a lower port cost than the individual switch ports did previous to the bundling.

2.What is the numeric value assigned to the highest devices in an NTP hierarchy?
Answer: Zero, or “stratum zero” to be more precise.

3.Which of the following is true of H.323?
A. It’s Cisco-proprietary.
B. It’s considered a “mature” protocol.
C. It does not support many recent VoIP features.
D. Cisco IP Phones do not support this protocol.
Answers: B, D. H.323 is an industry-standard protocol, not Cisco-proprietary.

4. Where is the router running-configuration file stored?
A. ROM
B. DRAM
C. EEPROM
D. NVRAM
Answer: B. The running config is only needed while the router is live and so DRAM is used. If you want to save the current running config you save it using the ‘copy run start’ command which saves it to NVRAM.

5. Where is the router IOS file stored?
A. ROM
B. DRAM
C. EEPROM
D. NVRAM
Answer: C. The IOS is stored in EEPROM or Flash memory. It can be wiped or have more than one IOS image stored on it.

6. Where is the router startup configuration file stored?
A. ROM
B. DRAM
C. EEPROM
D. NVRAM
Answer: D. NVRAM. The IOS is stored in EEPROM or Flash memory. It can be wiped or have more than one IOS image stored on it.

7. Where is the router boot strap file stored?
A. ROM
B. DRAM
C. EEPROM
D. NVRAM
Answer: A. The boot strap (or rommon image) is stored in ROM. It cannot be wiped.
8. Which memory is used for to buffer packets and store routing tables?
A. ROM
B. DRAM
C. EEPROM
D. NVRAM
Answer: B. DRAM is used to temporarily store packets, the routing table is also stored here.

Cisco CCNA Certification Exam 642-812  plays an important role on your way to get the Cisco CCNA Certified Network Associate.

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Cisco CCNA  Certification Network Associate Exam  640-802

Exam Description

The 640-802 Cisco Certified Network Associate (CCNA) is the composite exam associated with the Cisco Certified Network Associate certification. Candidates can prepare for this exam by taking the Interconnecting Cisco Networking Devices Part 1 (ICND1) v1.0 and the Interconnecting Cisco Networking Devices Part 2 (ICND2) v1.0 courses. This exam tests a candidate’s knowledge and skills required to install, operate, and troubleshoot a small to medium size enterprise branch network. The topics include connecting to a WAN; implementing network security; network types; network media; routing and switching fundamentals; the TCP/IP and OSI models; IP addressing; WAN technologies; operating and configuring IOS devices; extending switched networks with VLANs; determining IP routes; managing IP traffic with access lists; establishing point-to-point connections; and establishing Frame Relay connections.
Exam Topics

Explain and select the appropriate administrative tasks required for a WLAN

* Describe standards associated with wireless media (including: IEEE WIFI Alliance, ITU/FCC)
* Identify and describe the purpose of the components in a small wireless network. (Including: SSID, BSS, ESS)
* Identify the basic parameters to configure on a wireless network to ensure that devices connect to the correct access point
* Compare and contrast wireless security features and capabilities of WPA security (including: open, WEP, WPA-1/2)
* Identify common issues with implementing wireless networks. (Including: Interface, missconfiguration)

Identify security threats to a network and describe general methods to mitigate those threats

* Describe today’s increasing network security threats and explain the need to implement a comprehensive security policy to mitigate the threats
* Explain general methods to mitigate common security threats to network devices, hosts, and applications
* Describe the functions of common security appliances and applications
* Describe security recommended practices including initial steps to secure network devices

Implement, verify, and troubleshoot NAT and ACLs in a medium-size Enterprise branch office network.
* Verify and monitor ACLs in a network environment
* Troubleshoot ACL issues
* Explain the basic operation of NAT
* Configure NAT for given network requirements using (including: CLI/SDM)
* Troubleshoot NAT issues
* Describe the purpose and types of ACLs
* Configure and apply ACLs based on network filtering requirements.(including: CLI/SDM)
* Configure and apply an ACLs to limit telnet and SSH access to the router using (including: SDM/CLI)

Implement and verify WAN links

* Describe different methods for connecting to a WAN
* Configure and verify a basic WAN serial connection
* Configure and verify Frame Relay on Cisco routers
* Troubleshoot WAN implementation issues
* Describe VPN technology (including: importance, benefits, role, impact, components)
* Configure and verify a PPP connection between Cisco routers

The following topics are general guidelines for the content likely to be included on the Cisco Certified Network Associate exam. However, other related topics may also appear on any specific delivery of the exam. In order to better reflect the contents of the exam and for clarity purposes, the guidelines below may change at any time without notice.
Describe how a network works

* Describe the purpose and functions of various network devices
* Select the components required to meet a network specification
* Use the OSI and TCP/IP models and their associated protocols to explain how data flows in a network
* Describe common networked applications including web applications
* Describe the purpose and basic operation of the protocols in the OSI and TCP models
* Describe the impact of applications (Voice Over IP and Video Over IP) on a network
* Interpret network diagrams
* Determine the path between two hosts across a network
* Describe the components required for network and Internet communications
* Identify and correct common network problems at layers 1, 2, 3 and 7 using a layered model approach
* Differentiate between LAN/WAN operation and features

Configure, verify and troubleshoot a switch with VLANs and interswitch communications

* Select the appropriate media, cables, ports, and connectors to connect switches to other network devices and hosts
* Explain the technology and media access control method for Ethernet networks
* Explain network segmentation and basic traffic management concepts
* Explain basic switching concepts and the operation of Cisco switches
* Perform and verify initial switch configuration tasks including remote access management
* Verify network status and switch operation using basic utilities (including: ping, traceroute, telnet, SSH, arp, ipconfig), SHOW & DEBUG commands
* Identify, prescribe, and resolve common switched network media issues, configuration issues, auto negotiation, and switch hardware failures
* Describe enhanced switching technologies (including: VTP, RSTP, VLAN, PVSTP, 802.1q)
* Describe how VLANs create logically separate networks and the need for routing between them
* Configure, verify, and troubleshoot VLANs
* Configure, verify, and troubleshoot trunking on Cisco switches
* Configure, verify, and troubleshoot interVLAN routing
* Configure, verify, and troubleshoot VTP
* Configure, verify, and troubleshoot RSTP operation
* Interpret the output of various show and debug commands to verify the operational status of a Cisco switched network.
* Implement basic switch security (including: port security, trunk access, management vlan other than vlan1, etc.)

Implement an IP addressing scheme and IP Services to meet network requirements in a medium-size Enterprise branch office network.

* Describe the operation and benefits of using private and public IP addressing
* Explain the operation and benefits of using DHCP and DNS
* Configure, verify and troubleshoot DHCP and DNS operation on a router.(including: CLI/SDM)
* Implement static and dynamic addressing services for hosts in a LAN environment
* Calculate and apply an addressing scheme including VLSM IP addressing design to a network
* Determine the appropriate classless addressing scheme using VLSM and summarization to satisfy addressing requirements in a LAN/WAN environment
* Describe the technological requirements for running IPv6 in conjunction with IPv4 (including: protocols, dual stack, tunneling, etc).
* Describe IPv6 addresses
* Identify and correct common problems associated with IP addressing and host configurations

Configure, verify, and troubleshoot basic router operation and routing on Cisco devices
* Manage IOS configuration files. (including: save, edit, upgrade, restore)
* Manage Cisco IOS.
* Compare and contrast methods of routing and routing protocols
* Configure, verify, and troubleshoot OSPF
* Configure, verify, and troubleshoot EIGRP
* Verify network connectivity (including: using ping, traceroute, and telnet or SSH)
* Troubleshoot routing issues
* Verify router hardware and software operation using SHOW & DEBUG commands.
* Implement basic router security * Describe basic routing concepts (including: packet forwarding, router lookup process)
* Describe the operation of Cisco routers (including: router bootup process, POST, router components)
* Select the appropriate media, cables, ports, and connectors to connect routers to other network devices and hosts
* Configure, verify, and troubleshoot RIPv2
* Access and utilize the router to set basic parameters.(including: CLI/SDM)
* Connect, configure, and verify operation status of a device interface
* Verify device configuration and network connectivity using ping, traceroute, telnet, SSH or other utilities
* Perform and verify routing configuration tasks for a static or default route given specific routing requirements