1. There is no-way by which you can access nodes of the EMR cluster, this are processing nodes and if any node fails. EMR automatically launch new node to replace the failed one.
2. You need to create an IAM user, who can access any node in the EMR cluster and all the team member can use this IAM user.
3. You need to create an IAM Role, who can access any node in the EMR cluster and all the team member can assume that IAM role.
4. You have to open the port 22(SSH port) using Security Groups.
5. You have to open the port 22(SSH port) using Network Control Access List.
Correct Answer : 4 Exp : EMR nodes are the EC2 instance only and as you know that EC2 instances can be accessed only when security rules are configured accordingly. The default Amazon EMR managed security groups
associated with the cluster instance do not allow inbound SSH connections. If you want to connect to cluster nodes using SSH you have to allow the port in security group for inbound connection. When SSH port is open
you can use it for command line and even you can use it for viewing web interfaces that are hosted on the cluster.
4
