Optimize your network infrastructure! Dive into the guide to hiring the best Cisco developers to ensure robust, secure, and high-performance connectivity solutions.
Anyone who understands anything about software development knows that the landscape is constantly changing and evolving at an incredible pace. New technologies are constantly emerging, while many existing technologies and practices disappear, especially those related to communication and collaboration. In fact, there are many platforms that fuel the partnership between developers and business teams.
Cisco Systems Corporation is one of the most popular and well-known names in the world of communications. The technology company is not only known for its networking hardware in professional and personal user settings, but also offers collaborative platforms like Cisco Webex, developer training and certification programs including the popular Cisco DevNet, and many other products.
In recent years, Cisco has slowly begun to transition into a software development company, introducing the Cisco Spark and Cisco DevNet platforms. With this, the company expanded its horizons and gained even more relevance in the technology sector.
Cisco Developer Hiring Guide
While most professionals know Cisco as the company that rules the communications industry and the manufacturing of networking equipment and works to advance the Internet of Things, its certifications and developers are now more in demand than ever. Modern software development depends on effective communication, collaboration, and information sharing across teams, making it understandable for Cisco to advance development.
Cisco Webex, formerly known as Cisco Spark, allows each member of a development team to communicate easily on a single platform. Cisco engineers help integrate the necessary tools and technologies across platforms for faster, easier application development, testing, and deployment.
A Cisco developer plays a vital role in ensuring that business operations run smoothly throughout the entire software development process. They do this through development, maintenance, and operations on Cisco platforms and tools. Cisco developers have access to many tools and platforms to help develop software applications for many different types of network nodes and the latest Internet of Things products and technologies.
Developers who choose to specialize in Cisco products go through a Cisco certification and training program called DevNet. It is designed for both networking professionals and software developers to help optimize their skills, write new networking applications, and learn how to choose the technology skills they want to develop.
During this program, developers also train and become certified in Cisco's various areas of expertise, such as data center products, mobility, software-defined networking, mobility, and more. DevNet is the most current certification, but it also offers Cisco Certified Network Associate (CCNP) and Cisco Certified Internetwork Expert (CCIE) courses.
As the Internet of Things and big data projects increase in popularity and adaptability, the demand and need for Cisco engineers will also increase. This also means that demand is currently greater than supply, so companies currently face higher salaries and costs to hire (and retain) these qualified professionals.
Interview Questions
When and why does network congestion occur?
When applications send more data than network devices such as switches and routers can accommodate, network congestion occurs. This causes the buffers located on these devices to build up quickly and sometimes even overflow. A buffer is a part of a device's memory set aside as a temporary holding area for incoming or outgoing data. This data is then sent to or received from another device. However, buffering can lead to delayed or lost packets. The applications then retransmit the data, which ends up aggregating even more traffic and making congestion even worse.
What are the features of IP access lists?
There are 3 different types of access lists: standard, extended and named. They are beneficial in the following ways:
Block unwanted users or traffic
Authenticate incoming requests (including rsh and rcp)
Control access to vty
Limit debug command output
Provides bandwidth and NAT control
Trigger dial-in calls on demand
Help prevent DoS cyberattacks
Restrict Routing Update Content
What is the default TCP session timeout for Cisco products?
A TCP session timeout for Cisco is 1 minute and connection slots are freed after a normal connection closing sequence. Developers can configure other settings depending on their requirements. They also have the ability to set a global inactivity timeout for the connection and translation slots of various protocols. Resources return to free the pool if slots are not used during specified downtimes.
Explain the process of a TCP connection.
Step 1 : The sender and receiver are synchronized to establish a connection. Both operating systems involved remain informed of the established connection.
Step 2 : The sending party starts transmitting data and receives confirmations. As soon as the sender starts sending data, a timer starts.
Step 3 : The sender retransmits the data if it has not received any confirmation, even after the timer ends.
Step 4 : If the receiver's buffer is full and creates a case of windowing, the receiver sends a stop signal to the sender, which then stops data transmission. Step 5: After processing all the data, the receiver sends a signal to the sender to restart data transmissions.
Job description
We are looking for an experienced Cisco developer with a focus on Cisco workplace solutions. The right candidate has the ability to manage and maintain the development, delivery, and support of a wide variety of Cisco software, hardware, communications systems, and other products.
Responsibilities
- Create, install, maintain and configure networks
- Troubleshoot technical issues, troubleshoot and test networks, and resolve issues
- Update security as needed
- Ensure adequate protocols in registration, access, auditing and development
- Perform network stress tests and make recommendations for network planning and upgrades
- Support and collaborate with development and IT teams
Skills and qualifications
- Bachelor's degree in Computer Science, Computer Engineering or similar field
- More than 5 years of experience in Cisco systems and network administration
- Cisco Devnet and/or Cisco Certified Network Associate (CCNP) and/or Cisco Certified Internetwork Expert (CCIE) certifications
- Experience with Cisco voice and networking products
- Linux Experience
