Hereby, we present you with the simplest CCIE Interview Questions and answers. We hope you find this helpful. We have covered the following topics in our blog. These include
We have often heard and are aware that getting Cisco Certified Internetwork Expert (CCIE) certification is an uphill task. Although the list of things one needs to know is long, do not worry. We have tried to simplify the same for you.
Firstly, contrary to popular belief you don’t need a hefty number of questionnaires to ace the CCIE exam. Yet, you do need to prepare well for the exam. This blog is all about the basic concepts involved in the CCIE examination. We have included mostly the CCIE enterprise questions. You can get the help of this guide to get going.
At times, it becomes really difficult to keep up with all the concepts. Hence we have made it easy for you here.
Most of the time people run after complex concepts and forget about the basic ones.
We are mostly focusing on the basic concepts in the early part of this blog. Followed by it will be some higher-level questions. If your basics are not clear, you cannot do anything about the difficult concepts. Even the interviewers ask basic questions in a CCIE interview.
A firewall is a protection wall (a device) present between a trusted and a non-trusted network.
ASA acts as a Layer 2 device in Transparent Mode like a bridge or switch. It forwards Ethernet frames based on destination MAC-address.
The need of Transparent firewall:
The following features are not supported in Transport mode:
The health of a unit is measured by the ASA unit. It does so by monitoring the failover link. When a unit does not receive three continuous ‘hello’ messages on the failover link, it sends hello messages on each interface.
These interfaces include failover interface. It checks if the other unit responses or not.
On the basis of the responses from other units, it takes the following actions:
All types of copy commands except for # copy running-config startup-config.
All types of the write command except for # write memory.
Stateful failover | Stateless failover |
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The different types of ACL in Firewall include:
The application layer is the topmost layer of the OSI model. The users interact through this layer of the OSI model. It is layer 7 and sits at the top of the Open Systems Interconnection (OSI) communication model.
The application layer is NOT an application. It is a component within an application that takes care of the communications to other devices. It is an abstract layer of services that allows the application from the transmission process.
Application Layer protocol:
1. TELNET:
Steps to enable Telnet server:
2. FTP:
Steps to turn on FTP server on Cisco router:
3. TFTP:
Steps to start TFTP using commands:
To start TFTP server from the command line, type the tftpd command
tftpd [-l] [-p port] [-t timeout] [-r maxretries] [-c concurrency_limit] [-s maxsegsize] [-f file] [-a archive directory [-a …]] [-b IP address] [directory …]
4. NFS:
Command to start NFS:
Service nfs start
5. SMTP:
Command to start SMTP:
MAIL FROM: <mail@abc.com>
6. LPD:
Starting the LPD remote subsystem:
startsrc –s lpd
7. X window:
The command used to run it:
Run sdm in runlevel 5
8. DNS:
The command used for DNS:
ipconfig/ flushdns
9. DHCP:
The command used for DHCP:
Clear ip dhcp binding {address | *}
10. SNMP:
The command used for SNMP:
Snmpget –mALL -vl -cpublic snmp_agent_Ip_address sysName.0
10. SNMP:
The command used for SNMP:
Snmpget –mALL -vl -cpublic snmp_agent_Ip_address sysName.0
There are two modes of unicast RPF:
Strict mode is the default mode. This means that the switch forwards a packet only if the receiving interface is the best return path.
The Open Shortest Path First (OSPF) uses “cost” as a value of metric. It uses a Reference Bandwidth of 100 Mbps for cost calculation.
The formula to calculate the cost is:
Cost = Reference Bandwidth / Interface Bandwidth
For example, if the Ethernet is 10 Mbps, OSPF metric cost value is:
100 Mbps/ 10 Mbps = 10.
There are two types of debug commands:
There are also a bunch of show commands that show us the table status, topology table status and EIGRP traffic statistics.
Some of these commands are:
This is how to configure device as a node in BGP network:
There are also some optional steps to follow. Yet these are the necessary steps to configure BGP.
Quality of Service (QoS) is the use of technologies that work on a network to regulate traffic. It makes sure that the performance of critical applications does not suffer with the limited network capacity.
It also allows organizations to adjust their network traffic by serving high-performance applications first.
Cisco Modular Quality of Service (MQC) gives a modular and highly extensible framework for deploying QoS. It does so by standardizing the CLI and semantics for QoS features across all platforms. It uses all those platforms that are supported by Cisco IOS software.
So, we have summed up all the basic concepts that are included in Cisco Certified Internetwork Expert (CCIE) exam. You can easily prepare for your interview exam with these questions. All these topics are very important. As already mentioned, you cannot skip to the difficult concepts without clearing your basic concepts.
You can also check out our other interview questions and answers in our blog section. The questions mentioned are not exhaustive. Please do not rely on these questions to clear your interview. These are the basic answers you need to know.
Also, this blog is all free with answers. You do need to download any pdf and waste your time. We wish you all the best for your interview.