VLAN 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...
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VLAN Questions
Note: If you are not sure about Virtual Local Area Network (VLAN), please read our Virtual Local Area Network VLAN Tutorial. Question 1 Question 2 Question 3 Question 4 Question 5 Explanation On an...
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Switch Questions 2
Question 1 Explanation When you connect an IP phone to a switch using a trunk link, it can cause high CPU utilization in the switches. As all the VLANs for a particular interface are trunked to the...
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Question 1 Explanation In cut-through switching, the switch copies into its memory only the destination MAC address (first six bytes of the frame) of the frame. After processing these first six bytes,...
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Question 1 Explanation IP multicast is a bandwidth-conserving technology that reduces traffic by simultaneously delivering a single stream of information to potentially thousands of corporate...
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CDP & LLDP Questions
Question 1 Explanation CDP is enabled by default on all Cisco routers. If it is turned off by any reason, we can turn it on again with the following command on global configuration mode:...
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DMVPN Questions
If you are not sure about DMVPN, please read our DMVPN tutorial (on digitaltut.com). Question 1 Explanation The topology of DMVPN is always hub-and-spoke as all Spokes are required to connect to the...
View ArticleMPLS Questions
Note: If you are not sure about OSI Model, please read our MPLS tutorial. Question 1 Explanation MPLS operates at a layer that lies between traditional definitions of Layer 2 (data link layer) and...
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PPPoE Questions
If you are not sure about PPPoE, please read our PPPoE tutorial (on digitaltut.com). Question 1 Explanation The picture below shows all configuration needed for PPPoE: There is no Dialer interface on...
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QoS Questions
Question 1 Explanation The following diagram illustrates the key difference between traffic policing and traffic shaping. Traffic policing propagates bursts. When the traffic rate reaches the...
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Question 1 Question 2 Question 3 Explanation Both routers must use the same password for CHAP to authentication. Question 4 Explanation Point-to-point leased line is the most expensive interconnection...
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WAN Questions
If you are not sure about WAN, please read our WAN tutorial. Question 1 Explanation An example of the output of the “show interface serial …” command is shown below. We can see the line “Encapsulation...
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Cloud & Virtual Services
Question 1 Question 2 Explanation Network virtualization architecture has three main components: + Network access control and segmentation of classes of users: Users are authenticated and either...
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OSI TCP/IP Model Questions
Note: If you are not sure about OSI Model, please read our OSI Model tutorial. Question 1 Explanation The transport layer segments data into smaller pieces for transport. Each segment is assigned a...
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Basic Questions 2
Question 1 Explanation MDI stands for “Medium Dependent Interface”. MDI is a type of Ethernet port found on network devices. When connecting two devices with MDI ports (two hosts, for example) an...
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Basic Questions
Question 1 Explanation Star topology is the most popular topology for the network which allows all traffic to flow through a central device. Question 2 Explanation Carrier sense multiple access with...
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VLAN Troubleshooting Sim
Refer to the exhibit. Your colleague has built a Layer 2 network in your client locations. You must verify the configuration and fix any issues identified as per customer requirements. Customer...
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Basic MPLS Tutorial
MPLS is a new forwarding mechanism called “label switching” in which packets are forwarded based on labels. However, hosts are unaware about labeled packets so routers will need to add a label when...
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EIGRP GRE Troubleshooting Sim
Refer to the topology below. Your company asks you to identify the issues in Phase 1 EIGRP implementation. You have console access on R1, R2, R3 Branch1 and Branch2 routers. Only use show commands to...
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