You have to specify it as following

exp sys/passwd@sid FILE=exp.dmp LOG= exp.log TABLES=(schema.table1, schema.table2,...) CONSISTENT=Y DIRECT=Y COMPRESS=N

Alter the user table space, grant the permissions

imp sys/passwd@sid FILE=exp.dmp LOG=imp.log TABLES=(schema.table1, schema.table2, schema.table3,...) COMMIT=Y

Btw, are you going to export and import a perticular user? if so then you have to use the OWNER=user_name on your export and then FROMUSER=user_name TOUSER=user_name in your import clause.

Good luck,
Sam