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Syslog Questions
If you are not sure about Syslog, please read our Syslog tutorial. Question 1 Explanation The “service timestamps log” command configures the system to apply a time stamp to logging messages. The...
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DHCP Questions
Note: If you are not sure about DHCP, please read our DHCP tutorial. Question 1 Explanation The command “show ip dhcp conflict” is used to display address conflicts found by a Cisco IOS DHCP Server...
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Troubleshooting Questions
Question 1 Explanation At the end of each frame there is a Frame Check Sequence (FCS) field. FCS can be analyzed to determine if errors have occurred. FCS uses cyclic redundancy check (CRC) algorithm...
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Security Questions 2
Question 1 Explanation In fact in question wants to mention about site-to-site VPN. A site-to-site VPN allows offices in multiple fixed locations to establish secure connections with each other over a...
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Question 1 Question 2 Explanation The service password-encryption command will encrypt all current and future passwords so any password existed in the configuration will be encrypted. Question 3...
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IPv6 Questions 3
Note: If you are not sure about IPv6, please read our IPv6 tutorial. Question 1 Explanation A IPv6 Unique Local Address is an IPv6 address in the block FC00::/7, which means that IPv6 Unique Local...
View ArticleCCNA – Switch Questions
Question 1 Explanation The MAC address of 00b0.d056.efa4 has not been learned in its MAC address table so Switch-1 will broadcast the frame out all of its ports except the port from which the data...
View ArticleVLAN Questions 2
Question 1 Question 2 Question 3 Explanation The default Ethernet VLAN is VLAN 1. It is a security best practice to configure all the ports on all switches to be associated with VLANs other than VLAN...
View ArticleCCNA – IOS Questions
Note: If you are not sure about Cisco IOS, please read our Cisco Router Boot Sequence Tutorial and Cisco Command Line Interface CLI. Question 1 Question 2 Explanation It is a waste to administratively...
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CCNA – OSI & TCP/IP Model
Note: If you are not sure about OSI Model, please read our OSI Model tutorial. Question 1 Explanation The picture below shows the comparison between TCP/IP model & OSI model. Notice that the...
View ArticleCCNA – Basic Questions
Question 1 Explanation Organizational Unique Identifier (OUI) is the first 24 bits of a MAC address for a network device, which indicates the specific vendor for that device as assigned by the...
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DHCP Tutorial
In IP environment, before a computer can communicate to another one, they need to have their own IP addresses. There are two ways of configuring an IP address on a device:+ Statically assign an IP...
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Troubleshooting Lab Challenge 1 (OSPF)
Your customer network is running OSPF. An engineer has edited the network configuration and now their users are experiencing network issues. They have contacted you to resolve the issues and return the...
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TroubleShooting Lab Challenge 2 (EIGRP)
You have just been recruited to the TUT company. Recently your company has just setup a new network with six routers running EIGRP. A network administrator has configured the network but some issues...
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TroubleShooting Lab Challenge 3 (Switch Basic)
You have just been recruited to the TUT company. Recently your company has just setup a new network with five switches and three routers. Unfortunately, the network administrator forgot to write...
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Config Lab Challenge 1 (NAT)
Refer to the exhibit. You are tasked to configure Internet access for the users in your company. Your ISP has given you six public IP addresses in the range of 45.9.1.65 45.9.1.70/29 .Your company has...
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Checking Lab Challenge 1 (OSPF)
Your customer network is running OSPF. An engineer has just finished network configuration. You are now tasked to check the configuration of the routers and answer some questions about the network...
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Checking Lab Challenge 2 (Basic)
Your company has just installed and configured a new router to provide Internet access. Your task is to check the configuration of this router and take notes for future reference. Because of security,...
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Config Lab Challenge 2 (VTP)
Your company decided to implement four new switches as shown in the topology. Your task is to configure VTP on these switches. Please follow the instructions below to complete this task. Suppose...
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WAN Tutorial
Unlike LAN which is used effectively in relatively small geographic areas, WAN services help connect networks at a broad geographic distance, from a few to thousands of kilometers. Let’s see the...
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